<?xml version="1.0" encoding="utf-8"?>
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <!-- INTEGIX by Ez-XBRL -->
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DocumentAndEntityInformation" roleURI="http://www.hudbayminerals.com/role/DocumentAndEntityInformation"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#StockholdersEquity" roleURI="http://www.hudbayminerals.com/role/StockholdersEquity"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#AcquisitionOfCopperMountainMiningCorporation" roleURI="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporation"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#AcquisitionOfCopperMountainMiningCorporationTables" roleURI="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationTables"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#NotesToFinancialStatementsDisclosureOfDebtSecuritiesExplanatoryTextBlockTables" roleURI="http://www.hudbayminerals.com/role/NotesToFinancialStatementsDisclosureOfDebtSecuritiesExplanatoryTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#NotesToFinancialStatementsDisclosureOfSharebasedPaymentArrangementsExplanatoryTextBlockTables" roleURI="http://www.hudbayminerals.com/role/NotesToFinancialStatementsDisclosureOfSharebasedPaymentArrangementsExplanatoryTextBlockTables"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutEstimatedUsefulLifeOrDepreciationRateExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutEstimatedUsefulLifeOrDepreciationRateExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#AcquisitionOfCopperMountainMiningCorporationNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#AcquisitionOfCopperMountainMiningCorporationDetails" roleURI="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#AcquisitionOfCopperMountainMiningCorporationDetails1" roleURI="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationDetails1"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#AcquisitionOfCopperMountainMiningCorporationDetails2" roleURI="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationDetails2"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfRevenueAndExpensesExplanatoryTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfRevenueAndExpensesExplanatoryTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDepreciationAndAmortisationExpenseExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDepreciationAndAmortisationExpenseExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutSharebasedPaymentExpensesRecoveriesTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutSharebasedPaymentExpensesRecoveriesTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutEmployeeBenefitsExpenseTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutEmployeeBenefitsExpenseTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfOtherOperatingExpenseExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfOtherOperatingExpenseExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#ShorttermInvestmentsNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/ShorttermInvestmentsNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfInventoriesExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfInventoriesExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#IntangiblesAndOtherAssetsNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/IntangiblesAndOtherAssetsNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutIntangibleAssetsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutIntangibleAssetsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#GoodwillNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/GoodwillNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfPropertyPlantAndEquipmentExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfPropertyPlantAndEquipmentExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#OtherFinancialLiabilitiesNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/OtherFinancialLiabilitiesNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#LeaseLiabilityDetailTextuals" roleURI="http://www.hudbayminerals.com/role/LeaseLiabilityDetailTextuals"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#LongTermDebtNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/LongTermDebtNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfBorrowingsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfBorrowingsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutBorrowingsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutBorrowingsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDeferredIncomeExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDeferredIncomeExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfProvisionsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfProvisionsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfChangesInProvisionsTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfChangesInProvisionsTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDefinedBenefitPlansAndDefinedContributionPlansExplanatoryTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDefinedBenefitPlansAndDefinedContributionPlansExplanatoryTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfAdditionalInformationAboutDefinedBenefitPlansExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutDefinedBenefitPlansExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfAdditionalInformationAboutDefinedBenefitPlansBalanceByMemberGroupExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutDefinedBenefitPlansBalanceByMemberGroupExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfNetDefinedBenefitLiabilityAssetExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfNetDefinedBenefitLiabilityAssetExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#PensionObligationsScheduleOfNetDefinedBenefitLiabilityAssetDetails" roleURI="http://www.hudbayminerals.com/role/PensionObligationsScheduleOfNetDefinedBenefitLiabilityAssetDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutPensionObligationExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutPensionObligationExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutPensionExpenseExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutPensionExpenseExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutRemeasurementOnTheNetDefinedBenefitLiabilityExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutRemeasurementOnTheNetDefinedBenefitLiabilityExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDefinedBenefitPlanAssumptionsUsedExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDefinedBenefitPlanAssumptionsUsedExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfFairValueOfPlanAssetsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfFairValueOfPlanAssetsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfEmployeeBenefitsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfEmployeeBenefitsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfAdditionalInformationAboutOtherEmployeeBenefitPlansExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutOtherEmployeeBenefitPlansExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfAdditionalInformationAboutOtherEmployeeBenefitPlansBalanceByMemberGroupExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutOtherEmployeeBenefitPlansBalanceByMemberGroupExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfChangesInFairValueOfAssetsOfOtherEmployeeBenefitsPlanExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfChangesInFairValueOfAssetsOfOtherEmployeeBenefitsPlanExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfNetBenefitLiabilityForOtherEmployeeBenefitsExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfNetBenefitLiabilityForOtherEmployeeBenefitsExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutOtherEmployeeBenefitsPlanExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutOtherEmployeeBenefitsPlanExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutEmployeeFutureBenefitExpenseExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutEmployeeFutureBenefitExpenseExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutRemeasurementOfOtherLongTermEmployeeBenefitsExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutRemeasurementOfOtherLongTermEmployeeBenefitsExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfOtherEmployeeBenefitPlanAssumptionsUsedExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfOtherEmployeeBenefitPlanAssumptionsUsedExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfIncomeAndMiningTaxesExplanatoryTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfIncomeAndMiningTaxesExplanatoryTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDeferredTaxesExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDeferredTaxesExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfTemporaryDifferencesDeferredMiningTaxAssetsAndLiabilitiesExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfTemporaryDifferencesDeferredMiningTaxAssetsAndLiabilitiesExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfIssuedCapitalExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfIssuedCapitalExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutSharesActivityExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutSharesActivityExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfSharebasedPaymentArrangementsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSharebasedPaymentArrangementsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#SharebasedPaymentScheduleOfRangeOfExercisePricesOfShareOptionsDetails" roleURI="http://www.hudbayminerals.com/role/SharebasedPaymentScheduleOfRangeOfExercisePricesOfShareOptionsDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfFairValueOfFinancialInstrumentsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfFairValueOfFinancialInstrumentsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfFairValueMeasurementExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfFairValueMeasurementExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#FinancialInstrumentsScheduleOfNetPositionConsistedOfContractsAwaitingFinalPricingDetails" roleURI="http://www.hudbayminerals.com/role/FinancialInstrumentsScheduleOfNetPositionConsistedOfContractsAwaitingFinalPricingDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfDetailedInformationAboutForeignCurrencyRiskExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutForeignCurrencyRiskExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfForeignCurrencyRiskExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfForeignCurrencyRiskExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfCommodityPriceRiskExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfCommodityPriceRiskExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfSharePriceRiskExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSharePriceRiskExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfInterestRateRiskExplanatoryTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfInterestRateRiskExplanatoryTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfLiquidityRiskExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfLiquidityRiskExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfCommitmentsAndContingentLiabilitiesExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfCommitmentsAndContingentLiabilitiesExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#RelatedPartiesNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/RelatedPartiesNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfSignificantInvestmentsInSubsidiariesExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSignificantInvestmentsInSubsidiariesExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfCashFlowStatementExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfCashFlowStatementExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#SupplementaryCashFlowInformationDetails" roleURI="http://www.hudbayminerals.com/role/SupplementaryCashFlowInformationDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#NonControllingInterestNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/NonControllingInterestNarrativeDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#NonControllingInterestDetails" roleURI="http://www.hudbayminerals.com/role/NonControllingInterestDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#NonControllingInterestDetails1" roleURI="http://www.hudbayminerals.com/role/NonControllingInterestDetails1"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfEntitysReportableSegmentsExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfEntitysReportableSegmentsExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfGeographicalAreasExplanatoryDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasExplanatoryDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfGeographicalAreasAssetsAndLiabilitiesTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasAssetsAndLiabilitiesTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfGeographicalAreasAdditionsToPropertyPlantAndEquipmentTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasAdditionsToPropertyPlantAndEquipmentTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#DisclosureDisclosureOfGeographicalAreasRevenueByCustomerLocationTableTextBlockDetails" roleURI="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasRevenueByCustomerLocationTableTextBlockDetails"/>
  <roleRef xlink:type="simple" xlink:href="hbm-20251231.xsd#EventsAfterTheReportingPeriodNarrativeDetails" roleURI="http://www.hudbayminerals.com/role/EventsAfterTheReportingPeriodNarrativeDetails"/>
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll"/>
  <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DocumentAndEntityInformation">
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesLineItems" xlink:label="loc_dei_EntityAddressesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesTable" xlink:label="loc_dei_EntityAddressesTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesAddressTypeAxis" xlink:label="loc_dei_EntityAddressesAddressTypeAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AddressTypeDomain" xlink:label="loc_dei_AddressTypeDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_BusinessContactMember" xlink:label="loc_dei_BusinessContactMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AddressTypeDomain" xlink:label="loc_dei_AddressTypeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityPrimarySicNumber" xlink:label="loc_dei_EntityPrimarySicNumber_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_dei_EntityInteractiveDataCurrent_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_17"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityExTransitionPeriod" xlink:label="loc_dei_EntityExTransitionPeriod_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_22"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine3" xlink:label="loc_dei_EntityAddressAddressLine3_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_26"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_27"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_29"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AnnualInformationForm" xlink:label="loc_dei_AnnualInformationForm_30"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditedAnnualFinancialStatements" xlink:label="loc_dei_AuditedAnnualFinancialStatements_31"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAnnualReport" xlink:label="loc_dei_DocumentAnnualReport_32"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentRegistrationStatement" xlink:label="loc_dei_DocumentRegistrationStatement_33"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_34"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_ContactPersonnelName" xlink:label="loc_dei_ContactPersonnelName_35"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorOpinionTextBlock" xlink:label="loc_dei_AuditorOpinionTextBlock_36"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorFirmId" xlink:label="loc_dei_AuditorFirmId_37"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorLocation" xlink:label="loc_dei_AuditorLocation_38"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorName" xlink:label="loc_dei_AuditorName_39"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFinStmtErrorCorrectionFlag" xlink:label="loc_dei_DocumentFinStmtErrorCorrectionFlag_40"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_41"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_42"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_43"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_IcfrAuditorAttestationFlag" xlink:label="loc_dei_IcfrAuditorAttestationFlag_44"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityAddressesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntityAddressesTable_1" xlink:to="loc_dei_EntityAddressesAddressTypeAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_EntityAddressesAddressTypeAxis_1" xlink:to="loc_dei_AddressTypeDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_AddressTypeDomain_1" xlink:to="loc_dei_BusinessContactMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_EntityAddressesAddressTypeAxis_1" xlink:to="loc_dei_AddressTypeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityRegistrantName_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityCentralIndexKey_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityCurrentReportingStatus_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_DocumentType_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_DocumentPeriodEndDate_10" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_CurrentFiscalYearEndDate_11" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityPrimarySicNumber_12" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityTaxIdentificationNumber_13" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityInteractiveDataCurrent_14" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_DocumentFiscalYearFocus_15" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_DocumentFiscalPeriodFocus_16" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_17" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_AmendmentFlag_18" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityFileNumber_19" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityEmergingGrowthCompany_20" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityExTransitionPeriod_21" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityIncorporationStateCountryCode_22" order="170" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityAddressAddressLine1_23" order="180" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityAddressAddressLine2_24" order="190" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityAddressAddressLine3_25" order="200" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityAddressCityOrTown_26" order="210" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityAddressPostalZipCode_27" order="220" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_CityAreaCode_28" order="230" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_LocalPhoneNumber_29" order="240" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_AnnualInformationForm_30" order="250" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_AuditedAnnualFinancialStatements_31" order="260" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_DocumentAnnualReport_32" order="270" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_DocumentRegistrationStatement_33" order="280" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_EntityAddressStateOrProvince_34" order="290" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_ContactPersonnelName_35" order="300" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_AuditorOpinionTextBlock_36" order="310" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_AuditorFirmId_37" order="320" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_AuditorLocation_38" order="330" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_AuditorName_39" order="340" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_DocumentFinStmtErrorCorrectionFlag_40" order="350" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_Security12bTitle_41" order="360" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_TradingSymbol_42" order="370" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_SecurityExchangeName_43" order="380" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityAddressesLineItems_0" xlink:to="loc_dei_IcfrAuditorAttestationFlag_44" order="390" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/StockholdersEquity">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapitalMember" xlink:label="loc_ifrs-full_IssuedCapitalMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReservesMember" xlink:label="loc_ifrs-full_OtherReservesMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember" xlink:label="loc_ifrs-full_ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember" xlink:label="loc_ifrs-full_ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember_4"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevaluationSurplusMember" xlink:label="loc_ifrs-full_RevaluationSurplusMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarningsMember" xlink:label="loc_ifrs-full_RetainedEarningsMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncontrollingInterestsMember" xlink:label="loc_ifrs-full_NoncontrollingInterestsMember_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity" xlink:label="loc_ifrs-full_Equity_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="loc_ifrs-full_OtherComprehensiveIncome_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome" xlink:label="loc_ifrs-full_ComprehensiveIncome_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DilutionOfPartnersInterestInRosemont" xlink:label="loc_hbm_DilutionOfPartnersInterestInRosemont_17"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInEquityAbstract" xlink:label="loc_ifrs-full_ChangesInEquityAbstract_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaid" xlink:label="loc_ifrs-full_DividendsPaid_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughFlowThroughShares" xlink:label="loc_hbm_IncreaseDecreaseThroughFlowThroughShares_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssueOfEquity" xlink:label="loc_ifrs-full_IssueOfEquity_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughIssuanceOfSharesRelatedToStockOptionsRedeemed" xlink:label="loc_hbm_IncreaseDecreaseThroughIssuanceOfSharesRelatedToStockOptionsRedeemed_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughTaxAdjustmentsInRespectOfPriorYears" xlink:label="loc_hbm_IncreaseDecreaseThroughTaxAdjustmentsInRespectOfPriorYears_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInEquity" xlink:label="loc_ifrs-full_ChangesInEquity_25"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_0" xlink:to="loc_ifrs-full_StatementOfChangesInEquityTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable_1" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_1" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_IssuedCapitalMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_OtherReservesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_RevaluationSurplusMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_RetainedEarningsMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_EquityAttributableToOwnersOfParentMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_NoncontrollingInterestsMember_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_1" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_0" xlink:to="loc_ifrs-full_Equity_13" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_0" xlink:to="loc_ifrs-full_ProfitLoss_14" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_0" xlink:to="loc_ifrs-full_OtherComprehensiveIncome_15" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_0" xlink:to="loc_ifrs-full_ComprehensiveIncome_16" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_0" xlink:to="loc_hbm_DilutionOfPartnersInterestInRosemont_17" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems_0" xlink:to="loc_ifrs-full_ChangesInEquityAbstract_18" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_ifrs-full_DividendsPaid_18" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_hbm_IncreaseDecreaseThroughFlowThroughShares_19" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_ifrs-full_IssueOfEquity_20" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_21" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_22" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_hbm_IncreaseDecreaseThroughIssuanceOfSharesRelatedToStockOptionsRedeemed_23" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_hbm_IncreaseDecreaseThroughTaxAdjustmentsInRespectOfPriorYears_24" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ChangesInEquityAbstract_18" xlink:to="loc_ifrs-full_ChangesInEquity_25" order="70" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporation">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMiningCorporationMember" xlink:label="loc_hbm_CopperMountainMiningCorporationMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_7"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_1" xlink:to="loc_ifrs-full_BusinessCombinationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_CopperMountainMiningCorporationMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_7" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationTables">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfDetailedInformationAboutIdentifiableAssetsAcquiredAndLiabilitiesAssumedExplanatory" xlink:label="loc_hbm_DisclosureOfDetailedInformationAboutIdentifiableAssetsAcquiredAndLiabilitiesAssumedExplanatory_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfDetailedInformationAboutGoodwillUponAcquisitionExplanatory" xlink:label="loc_hbm_DisclosureOfDetailedInformationAboutGoodwillUponAcquisitionExplanatory_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_1" xlink:to="loc_ifrs-full_BusinessCombinationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_DisclosureOfDetailedInformationAboutIdentifiableAssetsAcquiredAndLiabilitiesAssumedExplanatory_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_DisclosureOfDetailedInformationAboutGoodwillUponAcquisitionExplanatory_9" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/NotesToFinancialStatementsDisclosureOfDebtSecuritiesExplanatoryTextBlockTables">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="loc_ifrs-full_BorrowingsByNameAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorUnsecuredNotesMember" xlink:label="loc_hbm_SeniorUnsecuredNotesMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorSecuredRevolvingCreditFacilitiesMember" xlink:label="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainBondsMember" xlink:label="loc_hbm_CopperMountainBondsMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" xlink:to="loc_ifrs-full_BorrowingsByNameAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorUnsecuredNotesMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_CopperMountainBondsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBorrowingsExplanatory_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_9" order="20" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/NotesToFinancialStatementsDisclosureOfSharebasedPaymentArrangementsExplanatoryTextBlockTables">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsAxis" xlink:label="loc_hbm_ClassesOfUnitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredShareUnitMember" xlink:label="loc_hbm_DeferredShareUnitMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestrictedShareUnitMember" xlink:label="loc_hbm_RestrictedShareUnitMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PerformanceShareUnitMember" xlink:label="loc_hbm_PerformanceShareUnitMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfFairValueAssumptionsUsedInBlackScholesValuationOfShareOptionsExplanatory" xlink:label="loc_hbm_DisclosureOfFairValueAssumptionsUsedInBlackScholesValuationOfShareOptionsExplanatory_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory" xlink:label="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfNumberAndWeightedAverageExercisePricesOfWarrantsExplanatory" xlink:label="loc_hbm_DisclosureOfNumberAndWeightedAverageExercisePricesOfWarrantsExplanatory_12"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1" xlink:to="loc_hbm_ClassesOfUnitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ClassesOfUnitsAxis_1" xlink:to="loc_hbm_ClassesOfUnitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_DeferredShareUnitMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_RestrictedShareUnitMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_PerformanceShareUnitMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ClassesOfUnitsAxis_1" xlink:to="loc_hbm_ClassesOfUnitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory_9" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_DisclosureOfFairValueAssumptionsUsedInBlackScholesValuationOfShareOptionsExplanatory_10" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory_11" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_DisclosureOfNumberAndWeightedAverageExercisePricesOfWarrantsExplanatory_12" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutEstimatedUsefulLifeOrDepreciationRateExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentsMember" xlink:label="loc_hbm_EquipmentsMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:label="loc_ifrs-full_OtherPropertyPlantAndEquipmentMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssetsMember" xlink:label="loc_ifrs-full_RightofuseAssetsMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment_8"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_hbm_EquipmentsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_ifrs-full_OtherPropertyPlantAndEquipmentMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_ifrs-full_RightofuseAssetsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_DescriptionOfUsefulLifePropertyPlantAndEquipment_8" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationNarrativeDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMiningCorporationMember" xlink:label="loc_hbm_CopperMountainMiningCorporationMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis" xlink:label="loc_ifrs-full_CounterpartiesAxis_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiMaterialsCorporationMember" xlink:label="loc_hbm_MitsubishiMaterialsCorporationMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:label="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashTransferred" xlink:label="loc_ifrs-full_CashTransferred_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CashTransferredInAnnualDeferredPayments" xlink:label="loc_hbm_CashTransferredInAnnualDeferredPayments_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CashTransferredInAnnualDeferredPaymentsAmountPerPayment" xlink:label="loc_hbm_CashTransferredInAnnualDeferredPaymentsAmountPerPayment_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContingentConsiderationRecognisedAsOfAcquisitionDateAmountPerPayment" xlink:label="loc_hbm_ContingentConsiderationRecognisedAsOfAcquisitionDateAmountPerPayment_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_21"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseInProportionOfOwnershipInterest" xlink:label="loc_hbm_IncreaseInProportionOfOwnershipInterest_22"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:label="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AnnualDeferredPaymentsRecordedAsFinancialLiability" xlink:label="loc_hbm_AnnualDeferredPaymentsRecordedAsFinancialLiability_24"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContingentPaymentsRecordedAsFinancialLiability" xlink:label="loc_hbm_ContingentPaymentsRecordedAsFinancialLiability_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AcquisitionRelatedCostsForTransactionRecognisedInEquity" xlink:label="loc_hbm_AcquisitionRelatedCostsForTransactionRecognisedInEquity_26"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_CopperMountainMiningCorporationMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_5" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_5" xlink:to="loc_ifrs-full_BusinessCombinationsMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_5" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_5" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_CounterpartiesAxis_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CounterpartiesAxis_10" xlink:to="loc_ifrs-full_CounterpartiesDomain_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CounterpartiesDomain_10" xlink:to="loc_hbm_MitsubishiMaterialsCorporationMember_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CounterpartiesAxis_10" xlink:to="loc_ifrs-full_CounterpartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_15" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_CashTransferred_16" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_CashTransferredInAnnualDeferredPayments_17" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_CashTransferredInAnnualDeferredPaymentsAmountPerPayment_18" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate_19" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_ContingentConsiderationRecognisedAsOfAcquisitionDateAmountPerPayment_20" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_21" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_IncreaseInProportionOfOwnershipInterest_22" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_23" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_AnnualDeferredPaymentsRecordedAsFinancialLiability_24" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_ContingentPaymentsRecordedAsFinancialLiability_25" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_AcquisitionRelatedCostsForTransactionRecognisedInEquity_26" order="120" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis" xlink:label="loc_ifrs-full_CounterpartiesAxis_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiMaterialsCorporationMember" xlink:label="loc_hbm_MitsubishiMaterialsCorporationMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate" xlink:label="loc_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TransferOfNetGainOnTranslationOfForeignCurrencyBalances" xlink:label="loc_hbm_TransferOfNetGainOnTranslationOfForeignCurrencyBalances_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:label="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_14"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_1" xlink:to="loc_ifrs-full_BusinessCombinationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_CounterpartiesAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CounterpartiesAxis_6" xlink:to="loc_ifrs-full_CounterpartiesDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CounterpartiesDomain_6" xlink:to="loc_hbm_MitsubishiMaterialsCorporationMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CounterpartiesAxis_6" xlink:to="loc_ifrs-full_CounterpartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_hbm_TransferOfNetGainOnTranslationOfForeignCurrencyBalances_12" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_13" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_14" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationDetails1">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMiningCorporationMember" xlink:label="loc_hbm_CopperMountainMiningCorporationMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationsTransactionsAxis" xlink:label="loc_hbm_BusinessCombinationsTransactionsAxis_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationsTransactionDomain" xlink:label="loc_hbm_BusinessCombinationsTransactionDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PreliminaryTransactionsMember" xlink:label="loc_hbm_PreliminaryTransactionsMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationAdjustmentsMember" xlink:label="loc_hbm_BusinessCombinationAdjustmentsMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationsTransactionDomain" xlink:label="loc_hbm_BusinessCombinationsTransactionDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract" xlink:label="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate" xlink:label="loc_hbm_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_InventoryRecognisedAsOfAcquisitionDate_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PrepaidExpensesRecognisedAsOfAcquisitionDate" xlink:label="loc_hbm_PrepaidExpensesRecognisedAsOfAcquisitionDate_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MineralPropertiesRecognisedAsOfAcquisitionDate" xlink:label="loc_hbm_MineralPropertiesRecognisedAsOfAcquisitionDate_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InventoriesLowGradeStockpileRecognisedAsOfAcquisitionDate" xlink:label="loc_hbm_InventoriesLowGradeStockpileRecognisedAsOfAcquisitionDate_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_20"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AdvancesRecognisedAsOfAcquisitionDate" xlink:label="loc_hbm_AdvancesRecognisedAsOfAcquisitionDate_21"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LeaseLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="loc_hbm_LeaseLiabilitiesRecognisedAsOfAcquisitionDate_22"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_FinancialLiabilitiesRecognisedAsOfAcquisitionDate_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate_24"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EnvironmentalAndOtherProvisionsRecognisedAsOfAcquisitionDate" xlink:label="loc_hbm_EnvironmentalAndOtherProvisionsRecognisedAsOfAcquisitionDate_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_26"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:label="loc_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_27"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_1" xlink:to="loc_ifrs-full_BusinessCombinationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_CopperMountainMiningCorporationMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_hbm_BusinessCombinationsTransactionsAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_BusinessCombinationsTransactionsAxis_6" xlink:to="loc_hbm_BusinessCombinationsTransactionDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_BusinessCombinationsTransactionDomain_6" xlink:to="loc_hbm_PreliminaryTransactionsMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_BusinessCombinationsTransactionDomain_6" xlink:to="loc_hbm_BusinessCombinationAdjustmentsMember_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_BusinessCombinationsTransactionsAxis_6" xlink:to="loc_hbm_BusinessCombinationsTransactionDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_12" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_hbm_TradeAndOtherReceivablesRecognisedAsOfAcquisitionDate_13" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_InventoryRecognisedAsOfAcquisitionDate_14" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_hbm_PrepaidExpensesRecognisedAsOfAcquisitionDate_15" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_FinancialAssetsRecognisedAsOfAcquisitionDate_16" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_17" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_hbm_MineralPropertiesRecognisedAsOfAcquisitionDate_18" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_hbm_InventoriesLowGradeStockpileRecognisedAsOfAcquisitionDate_19" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_20" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_hbm_AdvancesRecognisedAsOfAcquisitionDate_21" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_hbm_LeaseLiabilitiesRecognisedAsOfAcquisitionDate_22" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_FinancialLiabilitiesRecognisedAsOfAcquisitionDate_23" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_BorrowingsRecognisedAsOfAcquisitionDate_24" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_hbm_EnvironmentalAndOtherProvisionsRecognisedAsOfAcquisitionDate_25" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_26" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract_12" xlink:to="loc_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_27" order="150" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/AcquisitionOfCopperMountainMiningCorporationDetails2">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMiningCorporationMember" xlink:label="loc_hbm_CopperMountainMiningCorporationMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationsTransactionsAxis" xlink:label="loc_hbm_BusinessCombinationsTransactionsAxis_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationsTransactionDomain" xlink:label="loc_hbm_BusinessCombinationsTransactionDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PreliminaryTransactionsMember" xlink:label="loc_hbm_PreliminaryTransactionsMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationAdjustmentsMember" xlink:label="loc_hbm_BusinessCombinationAdjustmentsMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BusinessCombinationsTransactionDomain" xlink:label="loc_hbm_BusinessCombinationsTransactionDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:label="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate" xlink:label="loc_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:label="loc_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_GoodwillRecognisedAsOfAcquisitionDate_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_1" xlink:to="loc_ifrs-full_BusinessCombinationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_CopperMountainMiningCorporationMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable_1" xlink:to="loc_hbm_BusinessCombinationsTransactionsAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_BusinessCombinationsTransactionsAxis_6" xlink:to="loc_hbm_BusinessCombinationsTransactionDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_BusinessCombinationsTransactionDomain_6" xlink:to="loc_hbm_PreliminaryTransactionsMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_BusinessCombinationsTransactionDomain_6" xlink:to="loc_hbm_BusinessCombinationAdjustmentsMember_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_BusinessCombinationsTransactionsAxis_6" xlink:to="loc_hbm_BusinessCombinationsTransactionDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems_0" xlink:to="loc_ifrs-full_GoodwillRecognisedAsOfAcquisitionDate_15" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfRevenueAndExpensesExplanatoryTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevenueAndExpensesLineItems" xlink:label="loc_hbm_RevenueAndExpensesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfRevenueAndExpensesTable" xlink:label="loc_hbm_DisclosureOfRevenueAndExpensesTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MarubeniCorporationMember" xlink:label="loc_hbm_MarubeniCorporationMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FlinFlonMember" xlink:label="loc_hbm_FlinFlonMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AugustaResourceCorporationMember" xlink:label="loc_hbm_AugustaResourceCorporationMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LalorMember" xlink:label="loc_hbm_LalorMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BalmatMember" xlink:label="loc_hbm_BalmatMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperWorldIncMember" xlink:label="loc_hbm_CopperWorldIncMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HarmonyGoldAustraliaPtyLimitedMember" xlink:label="loc_hbm_HarmonyGoldAustraliaPtyLimitedMember_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiCorporationMember" xlink:label="loc_hbm_MitsubishiCorporationMember_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesAxis" xlink:label="loc_hbm_ExpensesAxis_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WildfireEvacuationCostsMember" xlink:label="loc_hbm_WildfireEvacuationCostsMember_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CareMaintenanceManitobaMember" xlink:label="loc_hbm_CareMaintenanceManitobaMember_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_26"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ArizonaMember" xlink:label="loc_hbm_ArizonaMember_27"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BritishColumbiaMember" xlink:label="loc_hbm_BritishColumbiaMember_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TimingAxis" xlink:label="loc_hbm_TimingAxis_32"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TimingDomain" xlink:label="loc_hbm_TimingDomain_32"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PreviousMember" xlink:label="loc_hbm_PreviousMember_32"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OnClosingMember" xlink:label="loc_hbm_OnClosingMember_33"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FuturesMember" xlink:label="loc_hbm_FuturesMember_34"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TimingDomain" xlink:label="loc_hbm_TimingDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_38"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_38"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EventsAfterReportingPeriodMember" xlink:label="loc_hbm_EventsAfterReportingPeriodMember_38"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueArisingFromContractModificationContractLiabilities" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueArisingFromContractModificationContractLiabilities_43"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InventoryWritedown2011" xlink:label="loc_ifrs-full_InventoryWritedown2011_44"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GainRecordedAfterReductionInNumberOfEmployeesAccruingServices" xlink:label="loc_hbm_GainRecordedAfterReductionInNumberOfEmployeesAccruingServices_45"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInDepreciationExpenseDueToChangeInBasisOfDepreciationCalculation" xlink:label="loc_hbm_IncreaseDecreaseInDepreciationExpenseDueToChangeInBasisOfDepreciationCalculation_46"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_47"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_48"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GainsLossesRelatedToUnrealizedNonHedgeDerivativeContracts" xlink:label="loc_hbm_GainsLossesRelatedToUnrealizedNonHedgeDerivativeContracts_49"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProfitSharingPlanPercentage" xlink:label="loc_hbm_ProfitSharingPlanPercentage_50"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeSharePurchasePlanContributionsPercentageOfPreTaxBaseSalary" xlink:label="loc_hbm_EmployeeSharePurchasePlanContributionsPercentageOfPreTaxBaseSalary_51"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeSharePurchasePlanMatchingContributionPercentage" xlink:label="loc_hbm_EmployeeSharePurchasePlanMatchingContributionPercentage_52"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastServiceCostDefinedBenefitPlans" xlink:label="loc_ifrs-full_PastServiceCostDefinedBenefitPlans_53"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingExpense_54"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingIncome" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingIncome_55"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment_56"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LossOnReplacementAndDisposalOfEquipment" xlink:label="loc_hbm_LossOnReplacementAndDisposalOfEquipment_57"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChanges" xlink:label="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChanges_58"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseOfRestructuringActivities" xlink:label="loc_ifrs-full_ExpenseOfRestructuringActivities_59"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GainFromInsuranceClaimProceedsReceived" xlink:label="loc_hbm_GainFromInsuranceClaimProceedsReceived_60"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InsuranceRevenue" xlink:label="loc_ifrs-full_InsuranceRevenue_61"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RecoveryOfValueAddedTaxReceivable" xlink:label="loc_hbm_RecoveryOfValueAddedTaxReceivable_62"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ImpairmentOfEnvironmentalObligation" xlink:label="loc_hbm_ImpairmentOfEnvironmentalObligation_63"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProceedsFromDisposalOfSubsidiaryShares" xlink:label="loc_hbm_ProceedsFromDisposalOfSubsidiaryShares_64"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GainLossOnDisposalOfInvestmentsInSubsidiaries" xlink:label="loc_hbm_GainLossOnDisposalOfInvestmentsInSubsidiaries_65"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExplorationFundingIncome" xlink:label="loc_hbm_ExplorationFundingIncome_66"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepairsAndMaintenanceExpense" xlink:label="loc_ifrs-full_RepairsAndMaintenanceExpense_67"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_68"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries" xlink:label="loc_ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries_69"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FutureProceedsFromChangesInOwnershipInterestsInSubsidiaries" xlink:label="loc_hbm_FutureProceedsFromChangesInOwnershipInterestsInSubsidiaries_70"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:label="loc_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_71"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RecoverableAmountOfAssetOrCashGeneratingUnitInExcessOfCarryingValue" xlink:label="loc_hbm_RecoverableAmountOfAssetOrCashGeneratingUnitInExcessOfCarryingValue_72"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContingentPaymentReceived" xlink:label="loc_hbm_ContingentPaymentReceived_73"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLoss" xlink:label="loc_ifrs-full_ReversalOfImpairmentLoss_74"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_MarubeniCorporationMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_FlinFlonMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_AugustaResourceCorporationMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_LalorMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_BalmatMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_CopperWorldIncMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_HarmonyGoldAustraliaPtyLimitedMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_11" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_11" xlink:to="loc_hbm_MitsubishiCorporationMember_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_11" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_ExpensesAxis_15" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ExpensesAxis_15" xlink:to="loc_hbm_ExpensesDomain_15" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_15" xlink:to="loc_hbm_WildfireEvacuationCostsMember_15" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_15" xlink:to="loc_hbm_CareMaintenanceManitobaMember_16" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ExpensesAxis_15" xlink:to="loc_hbm_ExpensesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_ifrs-full_RangeAxis_20" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_20" xlink:to="loc_ifrs-full_RangeDomain_20" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_20" xlink:to="loc_ifrs-full_BottomOfRangeMember_20" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_20" xlink:to="loc_ifrs-full_TopOfRangeMember_21" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_20" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_25" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_25" xlink:to="loc_ifrs-full_SegmentsDomain_25" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_25" xlink:to="loc_hbm_ManitobaMember_25" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_25" xlink:to="loc_country_PE_26" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_25" xlink:to="loc_hbm_ArizonaMember_27" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_25" xlink:to="loc_hbm_BritishColumbiaMember_28" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_25" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_TimingAxis_32" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_TimingAxis_32" xlink:to="loc_hbm_TimingDomain_32" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_TimingDomain_32" xlink:to="loc_hbm_PreviousMember_32" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_TimingDomain_32" xlink:to="loc_hbm_OnClosingMember_33" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_TimingDomain_32" xlink:to="loc_hbm_FuturesMember_34" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_TimingAxis_32" xlink:to="loc_hbm_TimingDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_38" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_38" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_38" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_38" xlink:to="loc_hbm_EventsAfterReportingPeriodMember_38" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_38" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueArisingFromContractModificationContractLiabilities_43" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_InventoryWritedown2011_44" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_GainRecordedAfterReductionInNumberOfEmployeesAccruingServices_45" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInDepreciationExpenseDueToChangeInBasisOfDepreciationCalculation_46" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_47" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_48" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_GainsLossesRelatedToUnrealizedNonHedgeDerivativeContracts_49" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ProfitSharingPlanPercentage_50" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_EmployeeSharePurchasePlanContributionsPercentageOfPreTaxBaseSalary_51" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_EmployeeSharePurchasePlanMatchingContributionPercentage_52" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_PastServiceCostDefinedBenefitPlans_53" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_MiscellaneousOtherOperatingExpense_54" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_MiscellaneousOtherOperatingIncome_55" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment_56" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_LossOnReplacementAndDisposalOfEquipment_57" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromMiscellaneousOtherChanges_58" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_ExpenseOfRestructuringActivities_59" order="170" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_GainFromInsuranceClaimProceedsReceived_60" order="180" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_InsuranceRevenue_61" order="190" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_RecoveryOfValueAddedTaxReceivable_62" order="200" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ImpairmentOfEnvironmentalObligation_63" order="210" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ProceedsFromDisposalOfSubsidiaryShares_64" order="220" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_GainLossOnDisposalOfInvestmentsInSubsidiaries_65" order="230" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ExplorationFundingIncome_66" order="240" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_RepairsAndMaintenanceExpense_67" order="250" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_68" order="260" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries_69" order="270" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_FutureProceedsFromChangesInOwnershipInterestsInSubsidiaries_70" order="280" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_71" order="290" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_RecoverableAmountOfAssetOrCashGeneratingUnitInExcessOfCarryingValue_72" order="300" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ContingentPaymentReceived_73" order="310" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_ReversalOfImpairmentLoss_74" order="320" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDepreciationAndAmortisationExpenseExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevenueAndExpensesLineItems" xlink:label="loc_hbm_RevenueAndExpensesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfRevenueAndExpensesTable" xlink:label="loc_hbm_DisclosureOfRevenueAndExpensesTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesAxis" xlink:label="loc_hbm_ExpensesAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CostOfSaleMember" xlink:label="loc_hbm_CostOfSaleMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SellingAndAdministrativeExpensesMember" xlink:label="loc_hbm_SellingAndAdministrativeExpensesMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense_7"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_ExpensesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ExpensesAxis_1" xlink:to="loc_hbm_ExpensesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_CostOfSaleMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_SellingAndAdministrativeExpensesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ExpensesAxis_1" xlink:to="loc_hbm_ExpensesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_DepreciationAndAmortisationExpense_7" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutSharebasedPaymentExpensesRecoveriesTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevenueAndExpensesLineItems" xlink:label="loc_hbm_RevenueAndExpensesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfRevenueAndExpensesTable" xlink:label="loc_hbm_DisclosureOfRevenueAndExpensesTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StockOptionPlanMember" xlink:label="loc_hbm_StockOptionPlanMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsAxis" xlink:label="loc_hbm_ClassesOfUnitsAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestrictedShareUnitMember" xlink:label="loc_hbm_RestrictedShareUnitMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredShareUnitMember" xlink:label="loc_hbm_DeferredShareUnitMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PerformanceShareUnitMember" xlink:label="loc_hbm_PerformanceShareUnitMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesAxis" xlink:label="loc_hbm_ExpensesAxis_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CostOfSaleMember" xlink:label="loc_hbm_CostOfSaleMember_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SellingAndAdministrativeExpensesMember" xlink:label="loc_hbm_SellingAndAdministrativeExpensesMember_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherOperatingExpensesMember" xlink:label="loc_hbm_OtherOperatingExpensesMember_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShareBasedPaymentExpensesRecoveries" xlink:label="loc_hbm_ShareBasedPaymentExpensesRecoveries_18"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_1" xlink:to="loc_hbm_StockOptionPlanMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_ClassesOfUnitsAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ClassesOfUnitsAxis_5" xlink:to="loc_hbm_ClassesOfUnitsDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_5" xlink:to="loc_hbm_RestrictedShareUnitMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_5" xlink:to="loc_hbm_DeferredShareUnitMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_5" xlink:to="loc_hbm_PerformanceShareUnitMember_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ClassesOfUnitsAxis_5" xlink:to="loc_hbm_ClassesOfUnitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_ExpensesAxis_11" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ExpensesAxis_11" xlink:to="loc_hbm_ExpensesDomain_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_11" xlink:to="loc_hbm_CostOfSaleMember_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_11" xlink:to="loc_hbm_SellingAndAdministrativeExpensesMember_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_11" xlink:to="loc_hbm_OtherOperatingExpensesMember_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ExpensesAxis_11" xlink:to="loc_hbm_ExpensesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ShareBasedPaymentExpensesRecoveries_18" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutEmployeeBenefitsExpenseTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevenueAndExpensesLineItems" xlink:label="loc_hbm_RevenueAndExpensesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfRevenueAndExpensesTable" xlink:label="loc_hbm_DisclosureOfRevenueAndExpensesTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsAxis" xlink:label="loc_hbm_ClassesOfUnitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestrictedShareUnitMember" xlink:label="loc_hbm_RestrictedShareUnitMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredShareUnitMember" xlink:label="loc_hbm_DeferredShareUnitMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PerformanceShareUnitMember" xlink:label="loc_hbm_PerformanceShareUnitMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StockOptionPlanMember" xlink:label="loc_hbm_StockOptionPlanMember_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermEmployeeBenefitsExpense" xlink:label="loc_ifrs-full_ShorttermEmployeeBenefitsExpense_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProfitSharingPlanExpense" xlink:label="loc_hbm_ProfitSharingPlanExpense_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShareBasedPaymentExpensesRecoveries" xlink:label="loc_hbm_ShareBasedPaymentExpensesRecoveries_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeSharePurchasePlan" xlink:label="loc_hbm_EmployeeSharePurchasePlan_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:label="loc_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:label="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PostEmploymentPlanCurtailment" xlink:label="loc_hbm_PostEmploymentPlanCurtailment_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastServiceCostDefinedBenefitPlans" xlink:label="loc_ifrs-full_PastServiceCostDefinedBenefitPlans_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PostEmploymentPlanAttributionChanges" xlink:label="loc_hbm_PostEmploymentPlanAttributionChanges_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherLongtermBenefits" xlink:label="loc_ifrs-full_OtherLongtermBenefits_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TerminationBenefitsExpense" xlink:label="loc_ifrs-full_TerminationBenefitsExpense_22"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EmployeeBenefitsExpense" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense_23"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_ClassesOfUnitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ClassesOfUnitsAxis_1" xlink:to="loc_hbm_ClassesOfUnitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_RestrictedShareUnitMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_DeferredShareUnitMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_PerformanceShareUnitMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ClassesOfUnitsAxis_1" xlink:to="loc_hbm_ClassesOfUnitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_7" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_7" xlink:to="loc_hbm_StockOptionPlanMember_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_7" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_ShorttermEmployeeBenefitsExpense_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ProfitSharingPlanExpense_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_ShareBasedPaymentExpensesRecoveries_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_EmployeeSharePurchasePlan_15" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans_16" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_17" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_PostEmploymentPlanCurtailment_18" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_PastServiceCostDefinedBenefitPlans_19" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_PostEmploymentPlanAttributionChanges_20" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_OtherLongtermBenefits_21" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_TerminationBenefitsExpense_22" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_EmployeeBenefitsExpense_23" order="120" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfOtherOperatingExpenseExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevenueAndExpensesLineItems" xlink:label="loc_hbm_RevenueAndExpensesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfRevenueAndExpensesTable" xlink:label="loc_hbm_DisclosureOfRevenueAndExpensesTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesAxis" xlink:label="loc_hbm_ExpensesAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RegionalCostsMember" xlink:label="loc_hbm_RegionalCostsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LossOnDisposalOfPropertyPlantAndEquipmentMember" xlink:label="loc_hbm_LossOnDisposalOfPropertyPlantAndEquipmentMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmortizationOfCommunityCostsOtherAssetsMember" xlink:label="loc_hbm_AmortizationOfCommunityCostsOtherAssetsMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainRelatedAcquisitionCostsMember" xlink:label="loc_hbm_CopperMountainRelatedAcquisitionCostsMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestructuringManitobaMember" xlink:label="loc_hbm_RestructuringManitobaMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WildfireEvacuationCostsMember" xlink:label="loc_hbm_WildfireEvacuationCostsMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CareMaintenanceManitobaMember" xlink:label="loc_hbm_CareMaintenanceManitobaMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EvaluationCostsMember" xlink:label="loc_hbm_EvaluationCostsMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InsuranceRecoveryMember" xlink:label="loc_hbm_InsuranceRecoveryMember_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ChangeInOtherProvisionsNonCapitalMember" xlink:label="loc_hbm_ChangeInOtherProvisionsNonCapitalMember_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ValueAddedTaxRecoveryMember" xlink:label="loc_hbm_ValueAddedTaxRecoveryMember_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReductionOfObligationToRenounceFlowThroughShareExpendituresNetOfProvisionsMember" xlink:label="loc_hbm_ReductionOfObligationToRenounceFlowThroughShareExpendituresNetOfProvisionsMember_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OptionAgreementProceedsMarubeniMember" xlink:label="loc_hbm_OptionAgreementProceedsMarubeniMember_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherOperatingExpensesMember" xlink:label="loc_hbm_OtherOperatingExpensesMember_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingExpense_19"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_ExpensesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ExpensesAxis_1" xlink:to="loc_hbm_ExpensesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_RegionalCostsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_LossOnDisposalOfPropertyPlantAndEquipmentMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_AmortizationOfCommunityCostsOtherAssetsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_CopperMountainRelatedAcquisitionCostsMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_RestructuringManitobaMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_WildfireEvacuationCostsMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_CareMaintenanceManitobaMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_EvaluationCostsMember_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_InsuranceRecoveryMember_9" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_ChangeInOtherProvisionsNonCapitalMember_10" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_ValueAddedTaxRecoveryMember_11" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_ReductionOfObligationToRenounceFlowThroughShareExpendituresNetOfProvisionsMember_12" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_OptionAgreementProceedsMarubeniMember_13" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_OtherOperatingExpensesMember_14" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ExpensesAxis_1" xlink:to="loc_hbm_ExpensesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_MiscellaneousOtherOperatingExpense_19" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/ShorttermInvestmentsNarrativeDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShortTermInvestmentsLineItems" xlink:label="loc_hbm_ShortTermInvestmentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShortTermInvestmentsTable" xlink:label="loc_hbm_ShortTermInvestmentsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShortTermInvestmentsAxis" xlink:label="loc_hbm_ShortTermInvestmentsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShortTermInvestmentsDomain" xlink:label="loc_hbm_ShortTermInvestmentsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GuaranteedInvestmentCertificateMaturingMarchTwoThousandTwentyFiveMember" xlink:label="loc_hbm_GuaranteedInvestmentCertificateMaturingMarchTwoThousandTwentyFiveMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GuaranteedInvestmentCertificateMaturingJuneTwoThousandTwentyFiveMember" xlink:label="loc_hbm_GuaranteedInvestmentCertificateMaturingJuneTwoThousandTwentyFiveMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShortTermInvestmentsDomain" xlink:label="loc_hbm_ShortTermInvestmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:label="loc_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_7"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_ShortTermInvestmentsLineItems_0" xlink:to="loc_hbm_ShortTermInvestmentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_ShortTermInvestmentsTable_1" xlink:to="loc_hbm_ShortTermInvestmentsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ShortTermInvestmentsAxis_1" xlink:to="loc_hbm_ShortTermInvestmentsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ShortTermInvestmentsDomain_1" xlink:to="loc_hbm_GuaranteedInvestmentCertificateMaturingMarchTwoThousandTwentyFiveMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ShortTermInvestmentsDomain_1" xlink:to="loc_hbm_GuaranteedInvestmentCertificateMaturingJuneTwoThousandTwentyFiveMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ShortTermInvestmentsAxis_1" xlink:to="loc_hbm_ShortTermInvestmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ShortTermInvestmentsLineItems_0" xlink:to="loc_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_7" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfInventoriesExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InventoriesLineItems" xlink:label="loc_hbm_InventoriesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InventoriesTable" xlink:label="loc_hbm_InventoriesTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InventoriesAxis" xlink:label="loc_hbm_InventoriesAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InventoriesDomain" xlink:label="loc_hbm_InventoriesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperConcentrateAndStockpileInventoryMember" xlink:label="loc_hbm_CopperConcentrateAndStockpileInventoryMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NonCurrentInventorySuppliesMember" xlink:label="loc_hbm_NonCurrentInventorySuppliesMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InventoriesDomain" xlink:label="loc_hbm_InventoriesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:label="loc_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FixedOverheadCosts" xlink:label="loc_hbm_FixedOverheadCosts_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WritedownsReversalsOfInventories" xlink:label="loc_ifrs-full_WritedownsReversalsOfInventories_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInStockpileInventoryDueToChangeInMethodOfEstimationOfApplyingMiningCosts" xlink:label="loc_hbm_IncreaseDecreaseInStockpileInventoryDueToChangeInMethodOfEstimationOfApplyingMiningCosts_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInFinishedGoodsInventoryDueToChangeInMethodOfEstimationOfApplyingMiningCosts" xlink:label="loc_hbm_IncreaseDecreaseInFinishedGoodsInventoryDueToChangeInMethodOfEstimationOfApplyingMiningCosts_16"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_InventoriesLineItems_0" xlink:to="loc_hbm_InventoriesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_InventoriesTable_1" xlink:to="loc_hbm_InventoriesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_InventoriesAxis_1" xlink:to="loc_hbm_InventoriesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_InventoriesDomain_1" xlink:to="loc_hbm_CopperConcentrateAndStockpileInventoryMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_InventoriesDomain_1" xlink:to="loc_hbm_NonCurrentInventorySuppliesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_InventoriesAxis_1" xlink:to="loc_hbm_InventoriesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_InventoriesTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_6" xlink:to="loc_ifrs-full_SegmentsDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_6" xlink:to="loc_hbm_ManitobaMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_6" xlink:to="loc_country_PE_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_6" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_InventoriesLineItems_0" xlink:to="loc_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_InventoriesLineItems_0" xlink:to="loc_hbm_FixedOverheadCosts_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_InventoriesLineItems_0" xlink:to="loc_ifrs-full_WritedownsReversalsOfInventories_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_InventoriesLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInStockpileInventoryDueToChangeInMethodOfEstimationOfApplyingMiningCosts_15" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_InventoriesLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInFinishedGoodsInventoryDueToChangeInMethodOfEstimationOfApplyingMiningCosts_16" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/IntangiblesAndOtherAssetsNarrativeDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FutureCommunityCostsMember" xlink:label="loc_hbm_FutureCommunityCostsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CashAdvancesAndEquipmentFinancingAdvancesMember" xlink:label="loc_hbm_CashAdvancesAndEquipmentFinancingAdvancesMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAssets" xlink:label="loc_ifrs-full_OtherAssets_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IntangiblesAndOtherAssets" xlink:label="loc_hbm_IntangiblesAndOtherAssets_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfIntangibleAssetsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsTable_1" xlink:to="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_1" xlink:to="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_1" xlink:to="loc_hbm_FutureCommunityCostsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_1" xlink:to="loc_hbm_CashAdvancesAndEquipmentFinancingAdvancesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_1" xlink:to="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_OtherAssets_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsLineItems_0" xlink:to="loc_hbm_IntangiblesAndOtherAssets_9" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutIntangibleAssetsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems" xlink:label="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="loc_ifrs-full_CarryingAmountMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossCarryingAmountMember" xlink:label="loc_ifrs-full_GrossCarryingAmountMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:label="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="loc_ifrs-full_CarryingAmountMember_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_12"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_1" xlink:to="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_1" xlink:to="loc_ifrs-full_CarryingAmountMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_1" xlink:to="loc_ifrs-full_GrossCarryingAmountMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_1" xlink:to="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_1" xlink:to="loc_ifrs-full_CarryingAmountMember_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_9" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_10" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_11" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfReconciliationOfChangesInIntangibleAssetsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_12" order="60" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/GoodwillNarrativeDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BritishColumbiaSegmentMember" xlink:label="loc_hbm_BritishColumbiaSegmentMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:label="loc_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CashFlowCalculationsUtilizedCopperPrices" xlink:label="loc_hbm_CashFlowCalculationsUtilizedCopperPrices_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CashFlowCalculationsUtilizedLongTermCopperPrices" xlink:label="loc_hbm_CashFlowCalculationsUtilizedLongTermCopperPrices_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EstimatedValueOfMineralResourceNotIncludedInLifeOfMinePlan" xlink:label="loc_hbm_EstimatedValueOfMineralResourceNotIncludedInLifeOfMinePlan_13"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_BritishColumbiaSegmentMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_1" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_5" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_5" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_5" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_0" xlink:to="loc_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_10" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_0" xlink:to="loc_hbm_CashFlowCalculationsUtilizedCopperPrices_11" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_0" xlink:to="loc_hbm_CashFlowCalculationsUtilizedLongTermCopperPrices_12" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_0" xlink:to="loc_hbm_EstimatedValueOfMineralResourceNotIncludedInLifeOfMinePlan_13" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfPropertyPlantAndEquipmentExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperWorldIncMember" xlink:label="loc_hbm_CopperWorldIncMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HudbayPeruIncMember" xlink:label="loc_hbm_HudbayPeruIncMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiCorporationMember" xlink:label="loc_hbm_MitsubishiCorporationMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EventsAfterReportingPeriodMember" xlink:label="loc_hbm_EventsAfterReportingPeriodMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_AZ" xlink:label="loc_stpr_AZ_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ArizonaAndManitobaMember" xlink:label="loc_hbm_ArizonaAndManitobaMember_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PeruMember" xlink:label="loc_hbm_PeruMember_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssets" xlink:label="loc_ifrs-full_RightofuseAssets_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_26"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_27"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections" xlink:label="loc_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_28"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CashFlowCalculationsUtilizedCopperPrices" xlink:label="loc_hbm_CashFlowCalculationsUtilizedCopperPrices_29"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CashFlowCalculationsUtilizedLongTermCopperPrices" xlink:label="loc_hbm_CashFlowCalculationsUtilizedLongTermCopperPrices_30"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:label="loc_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_31"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EstimatedValueOfMineralResourceNotIncludedInLifeOfMinePlan" xlink:label="loc_hbm_EstimatedValueOfMineralResourceNotIncludedInLifeOfMinePlan_32"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount" xlink:label="loc_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount_33"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_34"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_35"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInDepreciationExpenseDueToChangeInBasisOfDepreciationCalculation" xlink:label="loc_hbm_IncreaseDecreaseInDepreciationExpenseDueToChangeInBasisOfDepreciationCalculation_36"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_hbm_CopperWorldIncMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" xlink:to="loc_hbm_HudbayPeruIncMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" xlink:to="loc_hbm_MitsubishiCorporationMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_10" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_10" xlink:to="loc_hbm_EventsAfterReportingPeriodMember_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_10" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_14" xlink:to="loc_ifrs-full_SegmentsDomain_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_14" xlink:to="loc_stpr_AZ_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_14" xlink:to="loc_hbm_ArizonaAndManitobaMember_15" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_14" xlink:to="loc_hbm_PeruMember_16" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_14" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_20" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_20" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_20" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_20" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember_20" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis_20" xlink:to="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_RightofuseAssets_25" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_26" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_27" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_DescriptionOfDiscountRatesAppliedToCashFlowProjections_28" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_hbm_CashFlowCalculationsUtilizedCopperPrices_29" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_hbm_CashFlowCalculationsUtilizedLongTermCopperPrices_30" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_31" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_hbm_EstimatedValueOfMineralResourceNotIncludedInLifeOfMinePlan_32" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount_33" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_34" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_35" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInDepreciationExpenseDueToChangeInBasisOfDepreciationCalculation_36" order="120" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExplorationAndEvaluationAssetsMember" xlink:label="loc_ifrs-full_ExplorationAndEvaluationAssetsMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConstructionInProgressMember" xlink:label="loc_ifrs-full_ConstructionInProgressMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiningPropertyMember" xlink:label="loc_ifrs-full_MiningPropertyMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:label="loc_ifrs-full_OtherPropertyPlantAndEquipmentMember_4"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssetsMember" xlink:label="loc_ifrs-full_RightofuseAssetsMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="loc_ifrs-full_CarryingAmountMember_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossCarryingAmountMember" xlink:label="loc_ifrs-full_GrossCarryingAmountMember_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:label="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="loc_ifrs-full_CarryingAmountMember_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" xlink:label="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestatedMember" xlink:label="loc_ifrs-full_RestatedMember_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PreviouslyStatedMember" xlink:label="loc_ifrs-full_PreviouslyStatedMember_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseDueToApplicationOfIfrs16Member" xlink:label="loc_hbm_IncreaseDecreaseDueToApplicationOfIfrs16Member_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevisedOpeningBalanceAfterAdjustmentMember" xlink:label="loc_hbm_RevisedOpeningBalanceAfterAdjustmentMember_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestatedMember" xlink:label="loc_ifrs-full_RestatedMember_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_22"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DepreciationPropertyPlantAndEquipment_24"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ChangeInPropertyPlantAndEquipmentCapitalisedDevelopment" xlink:label="loc_hbm_ChangeInPropertyPlantAndEquipmentCapitalisedDevelopment_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ChangeInPropertyPlantAndEquipmentDecommissioningAndRestoration" xlink:label="loc_hbm_ChangeInPropertyPlantAndEquipmentDecommissioningAndRestoration_26"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment_27"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestCostsCapitalised" xlink:label="loc_ifrs-full_InterestCostsCapitalised_28"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ChangeInPropertyPlantAndEquipmentCapitalizedAccretionAndDepreciation" xlink:label="loc_hbm_ChangeInPropertyPlantAndEquipmentCapitalizedAccretionAndDepreciation_29"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_30"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_DisposalsPropertyPlantAndEquipment_31"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_32"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_33"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_34"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_ifrs-full_ExplorationAndEvaluationAssetsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_ifrs-full_ConstructionInProgressMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_ifrs-full_MiningPropertyMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_ifrs-full_OtherPropertyPlantAndEquipmentMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_1" xlink:to="loc_ifrs-full_RightofuseAssetsMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_1" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_9" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_9" xlink:to="loc_ifrs-full_CarryingAmountMember_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_9" xlink:to="loc_ifrs-full_GrossCarryingAmountMember_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_9" xlink:to="loc_ifrs-full_AccumulatedDepreciationAndAmortisationMember_10" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_9" xlink:to="loc_ifrs-full_CarryingAmountMember_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_1" xlink:to="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_14" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_14" xlink:to="loc_ifrs-full_RestatedMember_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RestatedMember_14" xlink:to="loc_ifrs-full_PreviouslyStatedMember_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RestatedMember_14" xlink:to="loc_hbm_IncreaseDecreaseDueToApplicationOfIfrs16Member_15" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RestatedMember_14" xlink:to="loc_hbm_RevisedOpeningBalanceAfterAdjustmentMember_16" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_14" xlink:to="loc_ifrs-full_RestatedMember_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment_21" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_22" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_23" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_DepreciationPropertyPlantAndEquipment_24" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_hbm_ChangeInPropertyPlantAndEquipmentCapitalisedDevelopment_25" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_hbm_ChangeInPropertyPlantAndEquipmentDecommissioningAndRestoration_26" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment_27" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_InterestCostsCapitalised_28" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_hbm_ChangeInPropertyPlantAndEquipmentCapitalizedAccretionAndDepreciation_29" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_30" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_DisposalsPropertyPlantAndEquipment_31" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_32" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_33" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_34" order="140" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/OtherFinancialLiabilitiesNarrativeDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAgreementsAxis" xlink:label="loc_hbm_StreamAgreementsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAgreementsDomain" xlink:label="loc_hbm_StreamAgreementsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamTransactionsWithSevenSevenSevenMineMember" xlink:label="loc_hbm_StreamTransactionsWithSevenSevenSevenMineMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAgreementsDomain" xlink:label="loc_hbm_StreamAgreementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ConstanciaOperationMember" xlink:label="loc_hbm_ConstanciaOperationMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis" xlink:label="loc_ifrs-full_CounterpartiesAxis_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiMaterialsCorporationMember" xlink:label="loc_hbm_MitsubishiMaterialsCorporationMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingAgreementsAxis" xlink:label="loc_hbm_EquipmentFinancingAgreementsAxis_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingAgreementsDomain" xlink:label="loc_hbm_EquipmentFinancingAgreementsDomain_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingMember" xlink:label="loc_hbm_EquipmentFinancingMember_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingAgreementsDomain" xlink:label="loc_hbm_EquipmentFinancingAgreementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsInterestRate" xlink:label="loc_ifrs-full_BorrowingsInterestRate_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NetAdditionsToOtherFinancialLiabilitiesAtAmortizedCost" xlink:label="loc_hbm_NetAdditionsToOtherFinancialLiabilitiesAtAmortizedCost_26"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:label="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_27"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AnnualDeferredPaymentsRecordedAsFinancialLiability" xlink:label="loc_hbm_AnnualDeferredPaymentsRecordedAsFinancialLiability_28"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContingentPaymentsRecordedAsFinancialLiability" xlink:label="loc_hbm_ContingentPaymentsRecordedAsFinancialLiability_29"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AccretionToOtherFinancialLiabilitiesAtAmortizedCost" xlink:label="loc_hbm_AccretionToOtherFinancialLiabilitiesAtAmortizedCost_30"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DiscountRateOnStreamingAgreement" xlink:label="loc_hbm_DiscountRateOnStreamingAgreement_31"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_1" xlink:to="loc_hbm_StreamAgreementsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_StreamAgreementsAxis_1" xlink:to="loc_hbm_StreamAgreementsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StreamAgreementsDomain_1" xlink:to="loc_hbm_StreamTransactionsWithSevenSevenSevenMineMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_StreamAgreementsAxis_1" xlink:to="loc_hbm_StreamAgreementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" xlink:to="loc_hbm_ConstanciaOperationMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_1" xlink:to="loc_ifrs-full_CounterpartiesAxis_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CounterpartiesAxis_10" xlink:to="loc_ifrs-full_CounterpartiesDomain_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CounterpartiesDomain_10" xlink:to="loc_hbm_MitsubishiMaterialsCorporationMember_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CounterpartiesAxis_10" xlink:to="loc_ifrs-full_CounterpartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_1" xlink:to="loc_hbm_EquipmentFinancingAgreementsAxis_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EquipmentFinancingAgreementsAxis_14" xlink:to="loc_hbm_EquipmentFinancingAgreementsDomain_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EquipmentFinancingAgreementsDomain_14" xlink:to="loc_hbm_EquipmentFinancingMember_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EquipmentFinancingAgreementsAxis_14" xlink:to="loc_hbm_EquipmentFinancingAgreementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable_1" xlink:to="loc_ifrs-full_RangeAxis_18" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_18" xlink:to="loc_ifrs-full_RangeDomain_18" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_18" xlink:to="loc_ifrs-full_BottomOfRangeMember_18" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_18" xlink:to="loc_ifrs-full_TopOfRangeMember_19" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_18" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_ifrs-full_BorrowingsInterestRate_24" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_25" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_hbm_NetAdditionsToOtherFinancialLiabilitiesAtAmortizedCost_26" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_27" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_hbm_AnnualDeferredPaymentsRecordedAsFinancialLiability_28" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_hbm_ContingentPaymentsRecordedAsFinancialLiability_29" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_hbm_AccretionToOtherFinancialLiabilitiesAtAmortizedCost_30" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_0" xlink:to="loc_hbm_DiscountRateOnStreamingAgreement_31" order="80" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/LeaseLiabilityDetailTextuals">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems" xlink:label="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable" xlink:label="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="loc_ifrs-full_BorrowingsByNameAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FinanceLeaseObligationsMember" xlink:label="loc_hbm_FinanceLeaseObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsToRightofuseAssets" xlink:label="loc_ifrs-full_AdditionsToRightofuseAssets_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsInterestRate" xlink:label="loc_ifrs-full_BorrowingsInterestRate_12"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable_1" xlink:to="loc_ifrs-full_BorrowingsByNameAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_FinanceLeaseObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsTable_1" xlink:to="loc_ifrs-full_RangeAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_5" xlink:to="loc_ifrs-full_RangeDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_5" xlink:to="loc_ifrs-full_BottomOfRangeMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_5" xlink:to="loc_ifrs-full_TopOfRangeMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_5" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems_0" xlink:to="loc_ifrs-full_AdditionsToRightofuseAssets_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems_0" xlink:to="loc_ifrs-full_BorrowingsInterestRate_12" order="20" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/LongTermDebtNarrativeDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="loc_ifrs-full_BorrowingsByNameAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorUnsecuredNotesMember" xlink:label="loc_hbm_SeniorUnsecuredNotesMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorNotesDue2026Member" xlink:label="loc_hbm_SeniorNotesDue2026Member_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorNotesDue2029Member" xlink:label="loc_hbm_SeniorNotesDue2029Member_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorSecuredRevolvingCreditFacilitiesMember" xlink:label="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TwoSeniorSecuredRevolvingCreditFacilitiesMember" xlink:label="loc_hbm_TwoSeniorSecuredRevolvingCreditFacilitiesMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LetterOfCreditFacilityMember" xlink:label="loc_hbm_LetterOfCreditFacilityMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainBondsMember" xlink:label="loc_hbm_CopperMountainBondsMember_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA" xlink:label="loc_country_CA_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ArizonaMember" xlink:label="loc_hbm_ArizonaMember_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_CA-BC" xlink:label="loc_stpr_CA-BC_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BcHydroMember" xlink:label="loc_hbm_BcHydroMember_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ConsolidatedStatementsOfIncomeAxis" xlink:label="loc_hbm_ConsolidatedStatementsOfIncomeAxis_24"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ConsolidatedStatementsOfIncomeDomain" xlink:label="loc_hbm_ConsolidatedStatementsOfIncomeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ConsolidatedStatementsOfIncomeDomain" xlink:label="loc_hbm_ConsolidatedStatementsOfIncomeDomain_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsInterestRate" xlink:label="loc_ifrs-full_BorrowingsInterestRate_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecurities" xlink:label="loc_ifrs-full_DebtSecurities_29"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBondsNotesAndDebentures" xlink:label="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures_30"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DiscountOnRepaymentsOfDebt" xlink:label="loc_hbm_DiscountOnRepaymentsOfDebt_31"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_UnamortizedTransactionCosts" xlink:label="loc_hbm_UnamortizedTransactionCosts_32"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingCostsRecognisedAsExpense" xlink:label="loc_ifrs-full_BorrowingCostsRecognisedAsExpense_33"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UndrawnBorrowingFacilities" xlink:label="loc_ifrs-full_UndrawnBorrowingFacilities_34"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevolvingCreditFacilityAmountDrawn" xlink:label="loc_hbm_RevolvingCreditFacilityAmountDrawn_35"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RepaymentsOfRevolvingCreditFacility" xlink:label="loc_hbm_RepaymentsOfRevolvingCreditFacility_36"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevolvingCreditFacilityAccordionFeature" xlink:label="loc_hbm_RevolvingCreditFacilityAccordionFeature_37"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsForDebtIssueCosts" xlink:label="loc_ifrs-full_PaymentsForDebtIssueCosts_38"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LettersOfCreditIssuedToSupportReclamationOrPensionObligations" xlink:label="loc_hbm_LettersOfCreditIssuedToSupportReclamationOrPensionObligations_39"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SuretyBondsIssuedToSupportReclamationObligations" xlink:label="loc_hbm_SuretyBondsIssuedToSupportReclamationObligations_40"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmountOfCallPremiumBondholders" xlink:label="loc_hbm_AmountOfCallPremiumBondholders_41"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LettersOfCredit" xlink:label="loc_hbm_LettersOfCredit_42"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BilateralLetterOfCreditFacilityClosed" xlink:label="loc_hbm_BilateralLetterOfCreditFacilityClosed_43"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmountOfClosingOfBilateralLetterOfCreditFacility" xlink:label="loc_hbm_AmountOfClosingOfBilateralLetterOfCreditFacility_44"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReclamationAndPensionObligations" xlink:label="loc_hbm_ReclamationAndPensionObligations_45"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PutOptionPricePercentage" xlink:label="loc_hbm_PutOptionPricePercentage_46"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PutOptionPremiumOnBorrowings" xlink:label="loc_hbm_PutOptionPremiumOnBorrowings_47"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RepaymentOfPrincipalAndPremiumAmountOfBonds" xlink:label="loc_hbm_RepaymentOfPrincipalAndPremiumAmountOfBonds_48"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RedemptionOfBonds" xlink:label="loc_hbm_RedemptionOfBonds_49"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CallOptionPricePercentage" xlink:label="loc_hbm_CallOptionPricePercentage_50"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" xlink:to="loc_ifrs-full_BorrowingsByNameAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorUnsecuredNotesMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorNotesDue2026Member_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorNotesDue2029Member_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_TwoSeniorSecuredRevolvingCreditFacilitiesMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_LetterOfCreditFacilityMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_CopperMountainBondsMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_11" xlink:to="loc_ifrs-full_SegmentsDomain_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_11" xlink:to="loc_country_CA_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_11" xlink:to="loc_country_PE_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_11" xlink:to="loc_hbm_ManitobaMember_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_11" xlink:to="loc_hbm_ArizonaMember_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_11" xlink:to="loc_stpr_CA-BC_15" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_11" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_19" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_19" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_19" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_19" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_19" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_19" xlink:to="loc_hbm_BcHydroMember_20" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_19" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" xlink:to="loc_hbm_ConsolidatedStatementsOfIncomeAxis_24" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ConsolidatedStatementsOfIncomeAxis_24" xlink:to="loc_hbm_ConsolidatedStatementsOfIncomeDomain_Default" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ConsolidatedStatementsOfIncomeAxis_24" xlink:to="loc_hbm_ConsolidatedStatementsOfIncomeDomain_25" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_BorrowingsInterestRate_28" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_DebtSecurities_29" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures_30" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_DiscountOnRepaymentsOfDebt_31" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_UnamortizedTransactionCosts_32" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_BorrowingCostsRecognisedAsExpense_33" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_UndrawnBorrowingFacilities_34" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_RevolvingCreditFacilityAmountDrawn_35" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_RepaymentsOfRevolvingCreditFacility_36" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_RevolvingCreditFacilityAccordionFeature_37" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_PaymentsForDebtIssueCosts_38" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_LettersOfCreditIssuedToSupportReclamationOrPensionObligations_39" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_SuretyBondsIssuedToSupportReclamationObligations_40" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_AmountOfCallPremiumBondholders_41" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_LettersOfCredit_42" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_BilateralLetterOfCreditFacilityClosed_43" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_AmountOfClosingOfBilateralLetterOfCreditFacility_44" order="170" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_ReclamationAndPensionObligations_45" order="180" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_PutOptionPricePercentage_46" order="190" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_PutOptionPremiumOnBorrowings_47" order="200" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_RepaymentOfPrincipalAndPremiumAmountOfBonds_48" order="210" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_RedemptionOfBonds_49" order="220" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_CallOptionPricePercentage_50" order="230" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfBorrowingsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="loc_ifrs-full_BorrowingsByNameAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorUnsecuredNotesMember" xlink:label="loc_hbm_SeniorUnsecuredNotesMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorSecuredRevolvingCreditFacilitiesMember" xlink:label="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPortionOfLongtermBorrowings" xlink:label="loc_ifrs-full_CurrentPortionOfLongtermBorrowings_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LongtermBorrowings" xlink:label="loc_ifrs-full_LongtermBorrowings_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Borrowings" xlink:label="loc_ifrs-full_Borrowings_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" xlink:to="loc_ifrs-full_BorrowingsByNameAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorUnsecuredNotesMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_CurrentPortionOfLongtermBorrowings_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_LongtermBorrowings_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_Borrowings_9" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutBorrowingsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="loc_ifrs-full_BorrowingsByNameAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorUnsecuredNotesMember" xlink:label="loc_hbm_SeniorUnsecuredNotesMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorSecuredRevolvingCreditFacilitiesMember" xlink:label="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain" xlink:label="loc_ifrs-full_BorrowingsByNameDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Borrowings" xlink:label="loc_ifrs-full_Borrowings_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProceedsFromDrawdownNetOfRepayments" xlink:label="loc_hbm_ProceedsFromDrawdownNetOfRepayments_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBondsNotesAndDebentures" xlink:label="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WriteDownOfUnamortizedTransactionCosts" xlink:label="loc_hbm_WriteDownOfUnamortizedTransactionCosts_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AccretionOfTransactionCostsAndPremiums" xlink:label="loc_hbm_AccretionOfTransactionCostsAndPremiums_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsForDebtIssueCosts" xlink:label="loc_ifrs-full_PaymentsForDebtIssueCosts_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BorrowingsAcquiredThroughBusinessCombinations" xlink:label="loc_hbm_BorrowingsAcquiredThroughBusinessCombinations_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmortizationAndWriteOffOfFairValueOfBorrowings" xlink:label="loc_hbm_AmortizationAndWriteOffOfFairValueOfBorrowings_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_1" xlink:to="loc_ifrs-full_BorrowingsByNameAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorUnsecuredNotesMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BorrowingsByNameDomain_1" xlink:to="loc_hbm_SeniorSecuredRevolvingCreditFacilitiesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BorrowingsByNameAxis_1" xlink:to="loc_ifrs-full_BorrowingsByNameDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_Borrowings_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_ProceedsFromDrawdownNetOfRepayments_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_9" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_RepaymentsOfBondsNotesAndDebentures_10" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_WriteDownOfUnamortizedTransactionCosts_11" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_AccretionOfTransactionCostsAndPremiums_12" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_ifrs-full_PaymentsForDebtIssueCosts_13" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_BorrowingsAcquiredThroughBusinessCombinations_14" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_0" xlink:to="loc_hbm_AmortizationAndWriteOffOfFairValueOfBorrowings_15" order="90" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDeferredIncomeExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAgreementsAxis" xlink:label="loc_hbm_StreamAgreementsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAgreementsDomain" xlink:label="loc_hbm_StreamAgreementsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PeruStreamAgreementMember" xlink:label="loc_hbm_PeruStreamAgreementMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamTransactionsWithWheatonMember" xlink:label="loc_hbm_StreamTransactionsWithWheatonMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamTransactionsWithConstanciaMineMember" xlink:label="loc_hbm_StreamTransactionsWithConstanciaMineMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAgreementsDomain" xlink:label="loc_hbm_StreamAgreementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepositsFromCustomers" xlink:label="loc_ifrs-full_DepositsFromCustomers_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DescriptionOfAggregateDepositPayments" xlink:label="loc_hbm_DescriptionOfAggregateDepositPayments_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DescriptionOfAdditionalDepositPayments" xlink:label="loc_hbm_DescriptionOfAdditionalDepositPayments_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DrawdownRateForGold" xlink:label="loc_hbm_DrawdownRateForGold_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DrawdownRateForSilver" xlink:label="loc_hbm_DrawdownRateForSilver_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DiscountRateOnStreamingAgreement" xlink:label="loc_hbm_DiscountRateOnStreamingAgreement_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DescriptionOfIncreasedFixedGoldRecoveries" xlink:label="loc_hbm_DescriptionOfIncreasedFixedGoldRecoveries_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAccountingStreamDeposit" xlink:label="loc_hbm_StreamAccountingStreamDeposit_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueArisingFromContractModificationContractLiabilities" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueArisingFromContractModificationContractLiabilities_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StreamAccountingFinanceCostsVariableConsiderationAdjustment" xlink:label="loc_hbm_StreamAccountingFinanceCostsVariableConsiderationAdjustment_17"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable_1" xlink:to="loc_hbm_StreamAgreementsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_StreamAgreementsAxis_1" xlink:to="loc_hbm_StreamAgreementsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StreamAgreementsDomain_1" xlink:to="loc_hbm_PeruStreamAgreementMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StreamAgreementsDomain_1" xlink:to="loc_hbm_StreamTransactionsWithWheatonMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StreamAgreementsDomain_1" xlink:to="loc_hbm_StreamTransactionsWithConstanciaMineMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_StreamAgreementsAxis_1" xlink:to="loc_hbm_StreamAgreementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_ifrs-full_DepositsFromCustomers_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_DescriptionOfAggregateDepositPayments_9" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_DescriptionOfAdditionalDepositPayments_10" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_DrawdownRateForGold_11" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_DrawdownRateForSilver_12" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_DiscountRateOnStreamingAgreement_13" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_DescriptionOfIncreasedFixedGoldRecoveries_14" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_StreamAccountingStreamDeposit_15" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueArisingFromContractModificationContractLiabilities_16" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_0" xlink:to="loc_hbm_StreamAccountingFinanceCostsVariableConsiderationAdjustment_17" order="100" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfProvisionsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsTable" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReevaluationAdjustmentForEnvironmentalProvision" xlink:label="loc_hbm_ReevaluationAdjustmentForEnvironmentalProvision_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProvisionEstimatesDiscountRateUsed" xlink:label="loc_hbm_ProvisionEstimatesDiscountRateUsed_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1" xlink:to="loc_ifrs-full_RangeAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_1" xlink:to="loc_ifrs-full_RangeDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_1" xlink:to="loc_ifrs-full_BottomOfRangeMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_1" xlink:to="loc_ifrs-full_TopOfRangeMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_1" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_hbm_ReevaluationAdjustmentForEnvironmentalProvision_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_hbm_ProvisionEstimatesDiscountRateUsed_9" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfChangesInProvisionsTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsTable" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis" xlink:label="loc_ifrs-full_ClassesOfProvisionsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember" xlink:label="loc_ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredShareUnitsMember" xlink:label="loc_hbm_DeferredShareUnitsMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedShareUnitsMember" xlink:label="loc_ifrs-full_RestrictedShareUnitsMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PerformanceShareUnitMember" xlink:label="loc_hbm_PerformanceShareUnitMember_4"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherProvisionsMember" xlink:label="loc_ifrs-full_MiscellaneousOtherProvisionsMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Provisions" xlink:label="loc_ifrs-full_Provisions_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionalProvisionsOtherProvisions" xlink:label="loc_ifrs-full_AdditionalProvisionsOtherProvisions_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionUsedOtherProvisions" xlink:label="loc_ifrs-full_ProvisionUsedOtherProvisions_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReductionOfObligationToRenounceFlowThroughShareExpendituresNetOfProvisions" xlink:label="loc_hbm_ReductionOfObligationToRenounceFlowThroughShareExpendituresNetOfProvisions_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:label="loc_ifrs-full_UnusedProvisionReversedOtherProvisions_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions" xlink:label="loc_ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseDueToUnwindingOfDiscountOnProvisions" xlink:label="loc_ifrs-full_ExpenseDueToUnwindingOfDiscountOnProvisions_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughChangeInInflationRateOtherProvisions" xlink:label="loc_hbm_IncreaseDecreaseThroughChangeInInflationRateOtherProvisions_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_20"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughChangeInSharePriceProvisions" xlink:label="loc_hbm_IncreaseDecreaseThroughChangeInSharePriceProvisions_21"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1" xlink:to="loc_ifrs-full_ClassesOfProvisionsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_1" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_hbm_DeferredShareUnitsMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_ifrs-full_RestrictedShareUnitsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_hbm_PerformanceShareUnitMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_ifrs-full_MiscellaneousOtherProvisionsMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_1" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_Provisions_10" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_AdditionalProvisionsOtherProvisions_11" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_12" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_ProvisionUsedOtherProvisions_13" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_hbm_ReductionOfObligationToRenounceFlowThroughShareExpendituresNetOfProvisions_14" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_UnusedProvisionReversedOtherProvisions_15" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions_16" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_ExpenseDueToUnwindingOfDiscountOnProvisions_17" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseThroughChangeInInflationRateOtherProvisions_18" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions_19" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_20" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseThroughChangeInSharePriceProvisions_21" order="120" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutProvisionsExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsTable" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis" xlink:label="loc_ifrs-full_ClassesOfProvisionsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember" xlink:label="loc_ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredShareUnitsMember" xlink:label="loc_hbm_DeferredShareUnitsMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedShareUnitsMember" xlink:label="loc_ifrs-full_RestrictedShareUnitsMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PerformanceShareUnitMember" xlink:label="loc_hbm_PerformanceShareUnitMember_4"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherProvisionsMember" xlink:label="loc_ifrs-full_MiscellaneousOtherProvisionsMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentProvisions" xlink:label="loc_ifrs-full_CurrentProvisions_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentProvisions" xlink:label="loc_ifrs-full_NoncurrentProvisions_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Provisions" xlink:label="loc_ifrs-full_Provisions_12"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsTable_1" xlink:to="loc_ifrs-full_ClassesOfProvisionsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_1" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_ifrs-full_ProvisionForDecommissioningRestorationAndRehabilitationCostsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_hbm_DeferredShareUnitsMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_ifrs-full_RestrictedShareUnitsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_hbm_PerformanceShareUnitMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfOtherProvisionsDomain_1" xlink:to="loc_ifrs-full_MiscellaneousOtherProvisionsMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis_1" xlink:to="loc_ifrs-full_ClassesOfOtherProvisionsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_CurrentProvisions_10" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_NoncurrentProvisions_11" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsLineItems_0" xlink:to="loc_ifrs-full_Provisions_12" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDefinedBenefitPlansAndDefinedContributionPlansExplanatoryTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StatementsLineItems" xlink:label="loc_hbm_StatementsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StatementsTable" xlink:label="loc_hbm_StatementsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CategoriesOfPensionersAxis" xlink:label="loc_hbm_CategoriesOfPensionersAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ActiveMembersMember" xlink:label="loc_hbm_ActiveMembersMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredMembersMember" xlink:label="loc_hbm_DeferredMembersMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RetiredMembersMember" xlink:label="loc_hbm_RetiredMembersMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InactiveMembersMember" xlink:label="loc_hbm_InactiveMembersMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsAxis" xlink:label="loc_ifrs-full_ActuarialAssumptionsAxis_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsDomain" xlink:label="loc_ifrs-full_ActuarialAssumptionsDomain_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRatesMember" xlink:label="loc_ifrs-full_ActuarialAssumptionOfDiscountRatesMember_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" xlink:label="loc_ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ActuarialAssumptionsOfLifeExpectancyMember" xlink:label="loc_hbm_ActuarialAssumptionsOfLifeExpectancyMember_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsDomain" xlink:label="loc_ifrs-full_ActuarialAssumptionsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansAxis" xlink:label="loc_ifrs-full_DefinedBenefitPlansAxis_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:label="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAxis" xlink:label="loc_ifrs-full_MaturityAxis_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="loc_ifrs-full_MaturityDomain_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotLaterThanOneYearMember" xlink:label="loc_ifrs-full_NotLaterThanOneYearMember_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearMember" xlink:label="loc_ifrs-full_LaterThanOneYearMember_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="loc_ifrs-full_MaturityDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DefinedBenefitObligationsAssumed" xlink:label="loc_hbm_DefinedBenefitObligationsAssumed_29"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_30"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleIncreaseInActuarialAssumptionBasisPoints" xlink:label="loc_hbm_ReasonablyPossibleIncreaseInActuarialAssumptionBasisPoints_31"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption_32"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleIncreaseInLifeExpectancyYears" xlink:label="loc_hbm_ReasonablyPossibleIncreaseInLifeExpectancyYears_33"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:label="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_34"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_35"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleDecreaseInLifeExpectancyYears" xlink:label="loc_hbm_ReasonablyPossibleDecreaseInLifeExpectancyYears_36"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleDecreaseInActuarialAssumptionBasisPoints" xlink:label="loc_hbm_ReasonablyPossibleDecreaseInActuarialAssumptionBasisPoints_37"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:label="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_38"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:label="loc_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_39"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019" xlink:label="loc_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019_40"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReturnOnPlanAssetsPercentage" xlink:label="loc_hbm_ReturnOnPlanAssetsPercentage_41"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_StatementsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_hbm_CategoriesOfPensionersAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_CategoriesOfPensionersAxis_5" xlink:to="loc_hbm_PensionersDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_ActiveMembersMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_DeferredMembersMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_RetiredMembersMember_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_InactiveMembersMember_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_CategoriesOfPensionersAxis_5" xlink:to="loc_hbm_PensionersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_ifrs-full_ActuarialAssumptionsAxis_12" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ActuarialAssumptionsAxis_12" xlink:to="loc_ifrs-full_ActuarialAssumptionsDomain_12" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_12" xlink:to="loc_ifrs-full_ActuarialAssumptionOfDiscountRatesMember_12" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_12" xlink:to="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember_13" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_12" xlink:to="loc_ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_14" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_12" xlink:to="loc_hbm_ActuarialAssumptionsOfLifeExpectancyMember_15" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ActuarialAssumptionsAxis_12" xlink:to="loc_ifrs-full_ActuarialAssumptionsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_ifrs-full_DefinedBenefitPlansAxis_19" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_19" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_19" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain_19" xlink:to="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_19" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_19" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_ifrs-full_MaturityAxis_23" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MaturityAxis_23" xlink:to="loc_ifrs-full_MaturityDomain_23" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_23" xlink:to="loc_ifrs-full_NotLaterThanOneYearMember_23" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_23" xlink:to="loc_ifrs-full_LaterThanOneYearMember_24" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MaturityAxis_23" xlink:to="loc_ifrs-full_MaturityDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_DefinedBenefitObligationsAssumed_29" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_30" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleIncreaseInActuarialAssumptionBasisPoints_31" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption_32" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleIncreaseInLifeExpectancyYears_33" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_34" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_35" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleDecreaseInLifeExpectancyYears_36" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleDecreaseInActuarialAssumptionBasisPoints_37" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_38" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_39" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019_40" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_ReturnOnPlanAssetsPercentage_41" order="130" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutDefinedBenefitPlansExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:label="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InterestExpenseNetDefinedBenefitLiabilityAsset" xlink:label="loc_hbm_InterestExpenseNetDefinedBenefitLiabilityAsset_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_16"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_InterestExpenseNetDefinedBenefitLiabilityAsset_10" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_11" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset_12" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_13" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_14" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_15" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_16" order="110" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutDefinedBenefitPlansBalanceByMemberGroupExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CategoriesOfPensionersAxis" xlink:label="loc_hbm_CategoriesOfPensionersAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ActiveMembersMember" xlink:label="loc_hbm_ActiveMembersMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredMembersMember" xlink:label="loc_hbm_DeferredMembersMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RetiredMembersMember" xlink:label="loc_hbm_RetiredMembersMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:label="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_12"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_CategoriesOfPensionersAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_CategoriesOfPensionersAxis_5" xlink:to="loc_hbm_PensionersDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_ActiveMembersMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_DeferredMembersMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_RetiredMembersMember_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_CategoriesOfPensionersAxis_5" xlink:to="loc_hbm_PensionersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_12" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfNetDefinedBenefitLiabilityAssetExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsAtFairValue" xlink:label="loc_ifrs-full_PlanAssetsAtFairValue_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PlanAssetsInterestIncome" xlink:label="loc_hbm_PlanAssetsInterestIncome_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PlanAssetsEmployerDirectBenefitPayments" xlink:label="loc_hbm_PlanAssetsEmployerDirectBenefitPayments_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AdministrativeExpensesPaidFromPlanAssets" xlink:label="loc_hbm_AdministrativeExpensesPaidFromPlanAssets_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SettlementPaymentsFromPlanAssets" xlink:label="loc_hbm_SettlementPaymentsFromPlanAssets_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PlanAssetsEffectsOfChangesInForeignExchangeRates" xlink:label="loc_hbm_PlanAssetsEffectsOfChangesInForeignExchangeRates_16"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PlanAssetsAtFairValue_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PlanAssetsInterestIncome_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PlanAssetsEmployerDirectBenefitPayments_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset_10" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset_11" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_AdministrativeExpensesPaidFromPlanAssets_12" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_13" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_SettlementPaymentsFromPlanAssets_14" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_15" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PlanAssetsEffectsOfChangesInForeignExchangeRates_16" order="110" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/PensionObligationsScheduleOfNetDefinedBenefitLiabilityAssetDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DefinedBenefitObligationAtPresentValueFunded" xlink:label="loc_hbm_DefinedBenefitObligationAtPresentValueFunded_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsAtFairValue" xlink:label="loc_ifrs-full_PlanAssetsAtFairValue_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DefinedBenefitObligationAtPresentValueUnfunded" xlink:label="loc_hbm_DefinedBenefitObligationAtPresentValueUnfunded_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SurplusDeficitInPlan" xlink:label="loc_ifrs-full_SurplusDeficitInPlan_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_DefinedBenefitObligationAtPresentValueFunded_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PlanAssetsAtFairValue_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_DefinedBenefitObligationAtPresentValueUnfunded_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_SurplusDeficitInPlan_9" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutPensionObligationExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeficitSurplusInPlanCurrent" xlink:label="loc_hbm_DeficitSurplusInPlanCurrent_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeficitSurplusInPlanNoncurrent" xlink:label="loc_hbm_DeficitSurplusInPlanNoncurrent_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SurplusDeficitInPlan" xlink:label="loc_ifrs-full_SurplusDeficitInPlan_8"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_DeficitSurplusInPlanCurrent_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_DeficitSurplusInPlanNoncurrent_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_SurplusDeficitInPlan_8" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutPensionExpenseExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CurtailmentNetDefinedBenefitLiabilityAsset" xlink:label="loc_hbm_CurtailmentNetDefinedBenefitLiabilityAsset_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromExpenseIncomeInProfitOrLoss" xlink:label="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromExpenseIncomeInProfitOrLoss_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AdministrationCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_hbm_AdministrationCostNetDefinedBenefitLiabilityAsset_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:label="loc_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:label="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_14"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_CurtailmentNetDefinedBenefitLiabilityAsset_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromExpenseIncomeInProfitOrLoss_10" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_11" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_AdministrationCostNetDefinedBenefitLiabilityAsset_12" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans_13" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_14" order="90" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutRemeasurementOnTheNetDefinedBenefitLiabilityExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsFromActuariesNetDefinedBenefitLiabilityAsset" xlink:label="loc_hbm_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsFromActuariesNetDefinedBenefitLiabilityAsset_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAsset_11"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsFromActuariesNetDefinedBenefitLiabilityAsset_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_10" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAsset_11" order="60" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDefinedBenefitPlanAssumptionsUsedExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansAxis" xlink:label="loc_ifrs-full_DefinedBenefitPlansAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DefinedBenefitCostMember" xlink:label="loc_hbm_DefinedBenefitCostMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:label="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CategoriesOfPensionersAxis" xlink:label="loc_hbm_CategoriesOfPensionersAxis_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MalesMember" xlink:label="loc_hbm_MalesMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FemalesMember" xlink:label="loc_hbm_FemalesMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DiscountRatesAxis" xlink:label="loc_hbm_DiscountRatesAxis_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DiscountRatesDomain" xlink:label="loc_hbm_DiscountRatesDomain_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BenefitObligationsMember" xlink:label="loc_hbm_BenefitObligationsMember_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ServiceCostMember" xlink:label="loc_hbm_ServiceCostMember_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DiscountRatesDomain" xlink:label="loc_hbm_DiscountRatesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:label="loc_ifrs-full_ActuarialAssumptionOfDiscountRates_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageLongevityAtRetirementAgeForCurrentPensioners" xlink:label="loc_hbm_AverageLongevityAtRetirementAgeForCurrentPensioners_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageLongevityAtRetirementAgeForCurrentEmployeesFuturePensioners" xlink:label="loc_hbm_AverageLongevityAtRetirementAgeForCurrentEmployeesFuturePensioners_24"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_ifrs-full_DefinedBenefitPlansAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_1" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain_1" xlink:to="loc_hbm_DefinedBenefitCostMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain_1" xlink:to="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_1" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_CategoriesOfPensionersAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_CategoriesOfPensionersAxis_6" xlink:to="loc_hbm_PensionersDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_6" xlink:to="loc_hbm_MalesMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_6" xlink:to="loc_hbm_FemalesMember_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_CategoriesOfPensionersAxis_6" xlink:to="loc_hbm_PensionersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_DiscountRatesAxis_11" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_DiscountRatesAxis_11" xlink:to="loc_hbm_DiscountRatesDomain_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DiscountRatesDomain_11" xlink:to="loc_hbm_BenefitObligationsMember_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DiscountRatesDomain_11" xlink:to="loc_hbm_ServiceCostMember_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_DiscountRatesAxis_11" xlink:to="loc_hbm_DiscountRatesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_16" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_16" xlink:to="loc_hbm_EmployeeBenefitsDomain_16" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_16" xlink:to="loc_hbm_PensionObligationsMember_16" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_16" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ActuarialAssumptionOfDiscountRates_21" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_22" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_AverageLongevityAtRetirementAgeForCurrentPensioners_23" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_AverageLongevityAtRetirementAgeForCurrentEmployeesFuturePensioners_24" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfFairValueOfPlanAssetsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsLineItems" xlink:label="loc_hbm_PensionObligationsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsTable" xlink:label="loc_hbm_PensionObligationsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionObligationsMember" xlink:label="loc_hbm_PensionObligationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInvestmentPropertyAxis" xlink:label="loc_ifrs-full_TypesOfInvestmentPropertyAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInvestmentPropertyDomain" xlink:label="loc_ifrs-full_TypesOfInvestmentPropertyDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MoneyMarketInstrumentsMember" xlink:label="loc_hbm_MoneyMarketInstrumentsMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PooledEquityFundsMember" xlink:label="loc_hbm_PooledEquityFundsMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PooledFixedIncomeFundsMember" xlink:label="loc_hbm_PooledFixedIncomeFundsMember_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentFundsMember" xlink:label="loc_ifrs-full_InvestmentFundsMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BalancedFundMember" xlink:label="loc_hbm_BalancedFundMember_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInvestmentPropertyDomain" xlink:label="loc_ifrs-full_TypesOfInvestmentPropertyDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember" xlink:label="loc_ifrs-full_Level1OfFairValueHierarchyMember_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember" xlink:label="loc_ifrs-full_Level2OfFairValueHierarchyMember_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets" xlink:label="loc_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets" xlink:label="loc_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsAtFairValue" xlink:label="loc_ifrs-full_PlanAssetsAtFairValue_22"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_hbm_PensionObligationsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_PensionObligationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_ifrs-full_TypesOfInvestmentPropertyAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfInvestmentPropertyAxis_5" xlink:to="loc_ifrs-full_TypesOfInvestmentPropertyDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfInvestmentPropertyDomain_5" xlink:to="loc_hbm_MoneyMarketInstrumentsMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfInvestmentPropertyDomain_5" xlink:to="loc_hbm_PooledEquityFundsMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfInvestmentPropertyDomain_5" xlink:to="loc_hbm_PooledFixedIncomeFundsMember_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfInvestmentPropertyDomain_5" xlink:to="loc_ifrs-full_InvestmentFundsMember_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfInvestmentPropertyDomain_5" xlink:to="loc_hbm_BalancedFundMember_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfInvestmentPropertyAxis_5" xlink:to="loc_ifrs-full_TypesOfInvestmentPropertyDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_PensionObligationsTable_1" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_13" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_13" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_13" xlink:to="loc_ifrs-full_Level1OfFairValueHierarchyMember_13" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_13" xlink:to="loc_ifrs-full_Level2OfFairValueHierarchyMember_14" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_13" xlink:to="loc_ifrs-full_Level3OfFairValueHierarchyMember_15" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_13" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets_20" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets_21" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionObligationsLineItems_0" xlink:to="loc_ifrs-full_PlanAssetsAtFairValue_22" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfEmployeeBenefitsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CategoriesOfPensionersAxis" xlink:label="loc_hbm_CategoriesOfPensionersAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ActiveMembersMember" xlink:label="loc_hbm_ActiveMembersMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InactiveMembersMember" xlink:label="loc_hbm_InactiveMembersMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsAxis" xlink:label="loc_ifrs-full_ActuarialAssumptionsAxis_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsDomain" xlink:label="loc_ifrs-full_ActuarialAssumptionsDomain_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRatesMember" xlink:label="loc_ifrs-full_ActuarialAssumptionOfDiscountRatesMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" xlink:label="loc_ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ActuarialAssumptionsOfLifeExpectancyMember" xlink:label="loc_hbm_ActuarialAssumptionsOfLifeExpectancyMember_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsDomain" xlink:label="loc_ifrs-full_ActuarialAssumptionsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleIncreaseInActuarialAssumptionBasisPoints" xlink:label="loc_hbm_ReasonablyPossibleIncreaseInActuarialAssumptionBasisPoints_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleIncreaseInLifeExpectancyYears" xlink:label="loc_hbm_ReasonablyPossibleIncreaseInLifeExpectancyYears_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:label="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_21"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleDecreaseInActuarialAssumptionBasisPoints" xlink:label="loc_hbm_ReasonablyPossibleDecreaseInActuarialAssumptionBasisPoints_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReasonablyPossibleDecreaseInLifeExpectancyYears" xlink:label="loc_hbm_ReasonablyPossibleDecreaseInLifeExpectancyYears_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:label="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WeightedAverageDurationOfNonPensionPostEmploymentObligation" xlink:label="loc_hbm_WeightedAverageDurationOfNonPensionPostEmploymentObligation_26"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_CategoriesOfPensionersAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_CategoriesOfPensionersAxis_1" xlink:to="loc_hbm_PensionersDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_1" xlink:to="loc_hbm_ActiveMembersMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_1" xlink:to="loc_hbm_InactiveMembersMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_CategoriesOfPensionersAxis_1" xlink:to="loc_hbm_PensionersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_6" xlink:to="loc_hbm_EmployeeBenefitsDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_6" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_6" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_ifrs-full_ActuarialAssumptionsAxis_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ActuarialAssumptionsAxis_10" xlink:to="loc_ifrs-full_ActuarialAssumptionsDomain_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_10" xlink:to="loc_ifrs-full_ActuarialAssumptionOfDiscountRatesMember_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_10" xlink:to="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_10" xlink:to="loc_ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_12" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ActuarialAssumptionsDomain_10" xlink:to="loc_hbm_ActuarialAssumptionsOfLifeExpectancyMember_13" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ActuarialAssumptionsAxis_10" xlink:to="loc_ifrs-full_ActuarialAssumptionsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleIncreaseInActuarialAssumptionBasisPoints_18" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption_19" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleIncreaseInLifeExpectancyYears_20" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_21" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleDecreaseInActuarialAssumptionBasisPoints_22" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_ReasonablyPossibleDecreaseInLifeExpectancyYears_23" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_24" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_25" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_WeightedAverageDurationOfNonPensionPostEmploymentObligation_26" order="90" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutOtherEmployeeBenefitPlansExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:label="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InterestExpenseNetDefinedBenefitLiabilityAsset" xlink:label="loc_hbm_InterestExpenseNetDefinedBenefitLiabilityAsset_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract" xlink:label="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_InterestExpenseNetDefinedBenefitLiabilityAsset_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_10" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract_11" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract_11" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract_11" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract_11" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_15" order="70" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfAdditionalInformationAboutOtherEmployeeBenefitPlansBalanceByMemberGroupExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CategoriesOfPensionersAxis" xlink:label="loc_hbm_CategoriesOfPensionersAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ActiveMembersMember" xlink:label="loc_hbm_ActiveMembersMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InactiveMembersMember" xlink:label="loc_hbm_InactiveMembersMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:label="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_11"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_CategoriesOfPensionersAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_CategoriesOfPensionersAxis_5" xlink:to="loc_hbm_PensionersDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_ActiveMembersMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_5" xlink:to="loc_hbm_InactiveMembersMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_CategoriesOfPensionersAxis_5" xlink:to="loc_hbm_PensionersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_11" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfChangesInFairValueOfAssetsOfOtherEmployeeBenefitsPlanExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsAtFairValue" xlink:label="loc_ifrs-full_PlanAssetsAtFairValue_8"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_PlanAssetsAtFairValue_8" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfNetBenefitLiabilityForOtherEmployeeBenefitsExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:label="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VacationAccrualAndOtherNonCurrentLiabilities" xlink:label="loc_hbm_VacationAccrualAndOtherNonCurrentLiabilities_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SurplusDeficitInPlan" xlink:label="loc_ifrs-full_SurplusDeficitInPlan_8"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_VacationAccrualAndOtherNonCurrentLiabilities_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_SurplusDeficitInPlan_8" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutOtherEmployeeBenefitsPlanExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLiabilityCurrent" xlink:label="loc_hbm_OtherEmployeeBenefitsLiabilityCurrent_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLiabilityNonCurrent" xlink:label="loc_hbm_OtherEmployeeBenefitsLiabilityNonCurrent_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SurplusDeficitInPlan" xlink:label="loc_ifrs-full_SurplusDeficitInPlan_8"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsLiabilityCurrent_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsLiabilityNonCurrent_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_SurplusDeficitInPlan_8" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutEmployeeFutureBenefitExpenseExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEmployeeExpense" xlink:label="loc_ifrs-full_OtherEmployeeExpense_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_OtherEmployeeExpense_9" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutRemeasurementOfOtherLongTermEmployeeBenefitsExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAsset" xlink:label="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAsset_10"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInNetDefinedBenefitLiabilityAsset_10" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfOtherEmployeeBenefitPlanAssumptionsUsedExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsLineItems" xlink:label="loc_hbm_OtherEmployeeBenefitsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsTable" xlink:label="loc_hbm_OtherEmployeeBenefitsTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsAxis" xlink:label="loc_hbm_EmployeeBenefitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherEmployeeBenefitsMember" xlink:label="loc_hbm_OtherEmployeeBenefitsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmployeeBenefitsDomain" xlink:label="loc_hbm_EmployeeBenefitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansAxis" xlink:label="loc_ifrs-full_DefinedBenefitPlansAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DefinedBenefitCostMember" xlink:label="loc_hbm_DefinedBenefitCostMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:label="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CategoriesOfPensionersAxis" xlink:label="loc_hbm_CategoriesOfPensionersAxis_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MalesMember" xlink:label="loc_hbm_MalesMember_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FemalesMember" xlink:label="loc_hbm_FemalesMember_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PensionersDomain" xlink:label="loc_hbm_PensionersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HealthCareTrendRatesAxis" xlink:label="loc_hbm_HealthCareTrendRatesAxis_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HealthCareTrendRatesDomain" xlink:label="loc_hbm_HealthCareTrendRatesDomain_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_InitialMember" xlink:label="loc_hbm_InitialMember_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_UltimateMember" xlink:label="loc_hbm_UltimateMember_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HealthCareTrendRatesDomain" xlink:label="loc_hbm_HealthCareTrendRatesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:label="loc_ifrs-full_ActuarialAssumptionOfDiscountRates_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates" xlink:label="loc_ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageLongevityAtRetirementAgeForCurrentPensioners" xlink:label="loc_hbm_AverageLongevityAtRetirementAgeForCurrentPensioners_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageLongevityAtRetirementAgeForCurrentEmployeesFuturePensioners" xlink:label="loc_hbm_AverageLongevityAtRetirementAgeForCurrentEmployeesFuturePensioners_24"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_OtherEmployeeBenefitsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_EmployeeBenefitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EmployeeBenefitsDomain_1" xlink:to="loc_hbm_OtherEmployeeBenefitsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EmployeeBenefitsAxis_1" xlink:to="loc_hbm_EmployeeBenefitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_ifrs-full_DefinedBenefitPlansAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_5" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain_5" xlink:to="loc_hbm_DefinedBenefitCostMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain_5" xlink:to="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis_5" xlink:to="loc_ifrs-full_DefinedBenefitPlansDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_CategoriesOfPensionersAxis_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_CategoriesOfPensionersAxis_10" xlink:to="loc_hbm_PensionersDomain_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_10" xlink:to="loc_hbm_MalesMember_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_PensionersDomain_10" xlink:to="loc_hbm_FemalesMember_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_CategoriesOfPensionersAxis_10" xlink:to="loc_hbm_PensionersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_OtherEmployeeBenefitsTable_1" xlink:to="loc_hbm_HealthCareTrendRatesAxis_15" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_HealthCareTrendRatesAxis_15" xlink:to="loc_hbm_HealthCareTrendRatesDomain_15" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_HealthCareTrendRatesDomain_15" xlink:to="loc_hbm_InitialMember_15" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_HealthCareTrendRatesDomain_15" xlink:to="loc_hbm_UltimateMember_16" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_HealthCareTrendRatesAxis_15" xlink:to="loc_hbm_HealthCareTrendRatesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_ActuarialAssumptionOfDiscountRates_21" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates_22" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_AverageLongevityAtRetirementAgeForCurrentPensioners_23" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_OtherEmployeeBenefitsLineItems_0" xlink:to="loc_hbm_AverageLongevityAtRetirementAgeForCurrentEmployeesFuturePensioners_24" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfIncomeAndMiningTaxesExplanatoryTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesNoncapitalLossesMember" xlink:label="loc_hbm_TemporaryDifferencesNoncapitalLossesMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesCapitalLossesMember" xlink:label="loc_hbm_TemporaryDifferencesCapitalLossesMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesOtherMember" xlink:label="loc_hbm_TemporaryDifferencesOtherMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember" xlink:label="loc_hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember_4"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US" xlink:label="loc_country_US_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" xlink:label="loc_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised" xlink:label="loc_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MaximumTaxableIncomeLimitPercentage" xlink:label="loc_hbm_MaximumTaxableIncomeLimitPercentage_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesNoncapitalLossesMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesCapitalLossesMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesOtherMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" xlink:to="loc_srt_StatementGeographicalAxis_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_8" xlink:to="loc_srt_SegmentGeographicalDomain_8" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_8" xlink:to="loc_country_US_8" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_8" xlink:to="loc_srt_SegmentGeographicalDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised_13" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised_14" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_hbm_MaximumTaxableIncomeLimitPercentage_15" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDeferredTaxesExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherTemporaryDifferencesMember" xlink:label="loc_ifrs-full_OtherTemporaryDifferencesMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember" xlink:label="loc_hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxAssets" xlink:label="loc_ifrs-full_DeferredTaxAssets_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilities" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset" xlink:label="loc_ifrs-full_DeferredTaxLiabilityAsset_9"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_ifrs-full_OtherTemporaryDifferencesMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DeferredTaxAssets_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DeferredTaxLiabilityAsset_9" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesPropertyPlantAndEquipmentMember" xlink:label="loc_hbm_TemporaryDifferencesPropertyPlantAndEquipmentMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesPensionObligationMember" xlink:label="loc_hbm_TemporaryDifferencesPensionObligationMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesOtherEmployeeBenefitsMember" xlink:label="loc_hbm_TemporaryDifferencesOtherEmployeeBenefitsMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DecommissioningAndRestorationObligationMember" xlink:label="loc_hbm_DecommissioningAndRestorationObligationMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesAssetRetirementObligationsMember" xlink:label="loc_hbm_TemporaryDifferencesAssetRetirementObligationsMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesNoncapitalLossesMember" xlink:label="loc_hbm_TemporaryDifferencesNoncapitalLossesMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesShareIssueAndDebtCostsMember" xlink:label="loc_hbm_TemporaryDifferencesShareIssueAndDebtCostsMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmbeddedDerivativePrepaymentOptionMember" xlink:label="loc_hbm_EmbeddedDerivativePrepaymentOptionMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredRevenueMember" xlink:label="loc_hbm_DeferredRevenueMember_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesOtherMember" xlink:label="loc_hbm_TemporaryDifferencesOtherMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherTemporaryDifferencesMember" xlink:label="loc_ifrs-full_OtherTemporaryDifferencesMember_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDeferredTaxAssets" xlink:label="loc_ifrs-full_NetDeferredTaxAssets_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredTaxExpenseRecoveryRelatingToOriginationAndReversalOfTemporaryDifferencesApplicableToDeferredIncomeTaxAsset" xlink:label="loc_hbm_DeferredTaxExpenseRecoveryRelatingToOriginationAndReversalOfTemporaryDifferencesApplicableToDeferredIncomeTaxAsset_17"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDeferredTaxLiabilities" xlink:label="loc_ifrs-full_NetDeferredTaxLiabilities_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredTaxExpenseRecoveryRelatingToOriginationAndReversalOfTemporaryDifferencesApplicableToDeferredIncomeTaxLiabilities" xlink:label="loc_hbm_DeferredTaxExpenseRecoveryRelatingToOriginationAndReversalOfTemporaryDifferencesApplicableToDeferredIncomeTaxLiabilities_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset" xlink:label="loc_ifrs-full_DeferredTaxLiabilityAsset_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences_21"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesPropertyPlantAndEquipmentMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesPensionObligationMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesOtherEmployeeBenefitsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_DecommissioningAndRestorationObligationMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesAssetRetirementObligationsMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesNoncapitalLossesMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesShareIssueAndDebtCostsMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_EmbeddedDerivativePrepaymentOptionMember_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_DeferredRevenueMember_9" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesOtherMember_10" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_ifrs-full_OtherTemporaryDifferencesMember_11" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_NetDeferredTaxAssets_16" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_hbm_DeferredTaxExpenseRecoveryRelatingToOriginationAndReversalOfTemporaryDifferencesApplicableToDeferredIncomeTaxAsset_17" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_NetDeferredTaxLiabilities_18" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_hbm_DeferredTaxExpenseRecoveryRelatingToOriginationAndReversalOfTemporaryDifferencesApplicableToDeferredIncomeTaxLiabilities_19" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DeferredTaxLiabilityAsset_20" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences_21" order="60" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfTemporaryDifferencesDeferredMiningTaxAssetsAndLiabilitiesExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember" xlink:label="loc_hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA" xlink:label="loc_country_CA_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesAxis" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesAxis_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesDomain" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesDomain_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PropertyPlantAndEquipmentDeferredMiningTaxAssetsMember" xlink:label="loc_hbm_PropertyPlantAndEquipmentDeferredMiningTaxAssetsMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:label="loc_ifrs-full_OtherPropertyPlantAndEquipmentMember_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesDomain" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset" xlink:label="loc_ifrs-full_DeferredTaxLiabilityAsset_16"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_1" xlink:to="loc_hbm_TemporaryDifferencesMiningPropertyPlantAndEquipmentMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_1" xlink:to="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_5" xlink:to="loc_ifrs-full_SegmentsDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_5" xlink:to="loc_country_CA_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_5" xlink:to="loc_country_PE_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_5" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_1" xlink:to="loc_ifrs-full_AssetsAndLiabilitiesAxis_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesAxis_10" xlink:to="loc_ifrs-full_AssetsAndLiabilitiesDomain_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesDomain_10" xlink:to="loc_hbm_PropertyPlantAndEquipmentDeferredMiningTaxAssetsMember_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesDomain_10" xlink:to="loc_ifrs-full_OtherPropertyPlantAndEquipmentMember_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesAxis_10" xlink:to="loc_ifrs-full_AssetsAndLiabilitiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_0" xlink:to="loc_ifrs-full_DeferredTaxLiabilityAsset_16" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfIssuedCapitalExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis" xlink:label="loc_ifrs-full_CounterpartiesAxis_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiMaterialsCorporationMember" xlink:label="loc_hbm_MitsubishiMaterialsCorporationMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapitalMember" xlink:label="loc_ifrs-full_IssuedCapitalMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_UnderwritersOfferingMember" xlink:label="loc_hbm_UnderwritersOfferingMember_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SaleOfStocksAxis" xlink:label="loc_hbm_SaleOfStocksAxis_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SaleOfStocksDomain" xlink:label="loc_hbm_SaleOfStocksDomain_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PrivatePlacementsMember" xlink:label="loc_hbm_PrivatePlacementsMember_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SaleOfStocksDomain" xlink:label="loc_hbm_SaleOfStocksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInNumberOfSharesOutstanding" xlink:label="loc_ifrs-full_IncreaseDecreaseInNumberOfSharesOutstanding_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SharesIssuedSharePrice" xlink:label="loc_hbm_SharesIssuedSharePrice_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromIssuingShares" xlink:label="loc_ifrs-full_ProceedsFromIssuingShares_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TransactionCostsRelatedToOffering" xlink:label="loc_hbm_TransactionCostsRelatedToOffering_26"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NetProceedsFromIssuingShares" xlink:label="loc_hbm_NetProceedsFromIssuingShares_27"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareIssueRelatedCost" xlink:label="loc_ifrs-full_ShareIssueRelatedCost_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:label="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_29"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssueOfEquity" xlink:label="loc_ifrs-full_IssueOfEquity_30"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInNumberOfSharesOutstandingFlowThroughShares" xlink:label="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingFlowThroughShares_31"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProceedsOnFlowThroughSharesNetOfShareIssuanceCost" xlink:label="loc_hbm_ProceedsOnFlowThroughSharesNetOfShareIssuanceCost_32"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FlowThroughShareLiability" xlink:label="loc_hbm_FlowThroughShareLiability_33"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FlowThroughShareLiabilityRecognizedInOtherExpenses" xlink:label="loc_hbm_FlowThroughShareLiabilityRecognizedInOtherExpenses_34"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DividendsDeclaredAmountPerShare" xlink:label="loc_hbm_DividendsDeclaredAmountPerShare_35"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaid" xlink:label="loc_ifrs-full_DividendsPaid_36"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_1" xlink:to="loc_ifrs-full_BusinessCombinationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" xlink:to="loc_ifrs-full_CounterpartiesAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CounterpartiesAxis_6" xlink:to="loc_ifrs-full_CounterpartiesDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CounterpartiesDomain_6" xlink:to="loc_hbm_MitsubishiMaterialsCorporationMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CounterpartiesAxis_6" xlink:to="loc_ifrs-full_CounterpartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_10" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_10" xlink:to="loc_ifrs-full_IssuedCapitalMember_10" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_10" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_14" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_14" xlink:to="loc_hbm_UnderwritersOfferingMember_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_14" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" xlink:to="loc_hbm_SaleOfStocksAxis_18" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_SaleOfStocksAxis_18" xlink:to="loc_hbm_SaleOfStocksDomain_18" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_SaleOfStocksDomain_18" xlink:to="loc_hbm_PrivatePlacementsMember_18" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_SaleOfStocksAxis_18" xlink:to="loc_hbm_SaleOfStocksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInNumberOfSharesOutstanding_23" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_SharesIssuedSharePrice_24" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_ProceedsFromIssuingShares_25" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_TransactionCostsRelatedToOffering_26" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_NetProceedsFromIssuingShares_27" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_ShareIssueRelatedCost_28" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_29" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_IssueOfEquity_30" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingFlowThroughShares_31" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_ProceedsOnFlowThroughSharesNetOfShareIssuanceCost_32" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_FlowThroughShareLiability_33" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_FlowThroughShareLiabilityRecognizedInOtherExpenses_34" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_DividendsDeclaredAmountPerShare_35" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_DividendsPaid_36" order="140" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutSharesActivityExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapitalMember" xlink:label="loc_ifrs-full_IssuedCapitalMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RockcliffMetalsCorporationMember" xlink:label="loc_hbm_RockcliffMetalsCorporationMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMiningCorporationMember" xlink:label="loc_hbm_CopperMountainMiningCorporationMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:label="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity" xlink:label="loc_ifrs-full_Equity_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInNumberOfSharesOutstanding" xlink:label="loc_ifrs-full_IncreaseDecreaseInNumberOfSharesOutstanding_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssueOfEquity" xlink:label="loc_ifrs-full_IssueOfEquity_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInNumberOfSharesOutstandingFlowThroughShares" xlink:label="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingFlowThroughShares_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughFlowThroughShares" xlink:label="loc_hbm_IncreaseDecreaseThroughFlowThroughShares_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInNumberOfSharesOutstandingExerciseOfOptions" xlink:label="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingExerciseOfOptions_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInNumberOfSharesOutstandingExerciseOfWarrants" xlink:label="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingExerciseOfWarrants_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfWarrantsEquity" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfWarrantsEquity_21"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfCopperMountain" xlink:label="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfCopperMountain_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughSharesIssuedOnAcquisitionOfCopperMountain" xlink:label="loc_hbm_IncreaseDecreaseThroughSharesIssuedOnAcquisitionOfCopperMountain_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfRockcliff" xlink:label="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfRockcliff_24"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughSharesAndWarrantsIssuedOnAcquisitionOfRockcliff" xlink:label="loc_hbm_IncreaseDecreaseThroughSharesAndWarrantsIssuedOnAcquisitionOfRockcliff_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseInNumberOfSharesCancelled" xlink:label="loc_hbm_IncreaseDecreaseInNumberOfSharesCancelled_26"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DecreaseThroughCancelledShares" xlink:label="loc_hbm_DecreaseThroughCancelledShares_27"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_IncreaseDecreaseThroughTaxAdjustmentsInRespectOfPriorYears" xlink:label="loc_hbm_IncreaseDecreaseThroughTaxAdjustmentsInRespectOfPriorYears_28"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" xlink:to="loc_ifrs-full_ComponentsOfEquityAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_1" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain_1" xlink:to="loc_ifrs-full_IssuedCapitalMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis_1" xlink:to="loc_ifrs-full_ComponentsOfEquityDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_5" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_5" xlink:to="loc_ifrs-full_BusinessCombinationsMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_5" xlink:to="loc_hbm_RockcliffMetalsCorporationMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_5" xlink:to="loc_hbm_CopperMountainMiningCorporationMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_5" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_Equity_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseInNumberOfSharesOutstanding_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_IssueOfEquity_15" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingFlowThroughShares_16" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseThroughFlowThroughShares_17" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingExerciseOfOptions_18" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_19" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingExerciseOfWarrants_20" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfWarrantsEquity_21" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfCopperMountain_22" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseThroughSharesIssuedOnAcquisitionOfCopperMountain_23" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfRockcliff_24" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseThroughSharesAndWarrantsIssuedOnAcquisitionOfRockcliff_25" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseInNumberOfSharesCancelled_26" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_DecreaseThroughCancelledShares_27" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_0" xlink:to="loc_hbm_IncreaseDecreaseThroughTaxAdjustmentsInRespectOfPriorYears_28" order="170" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSharebasedPaymentArrangementsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StockOptionPlanPriorToMayTwoZeroZeroEightAmendmentMember" xlink:label="loc_hbm_StockOptionPlanPriorToMayTwoZeroZeroEightAmendmentMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StockOptionPlanMember" xlink:label="loc_hbm_StockOptionPlanMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsAxis" xlink:label="loc_hbm_ClassesOfUnitsAxis_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredShareUnitMember" xlink:label="loc_hbm_DeferredShareUnitMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestrictedShareUnitMember" xlink:label="loc_hbm_RestrictedShareUnitMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PerformanceShareUnitMember" xlink:label="loc_hbm_PerformanceShareUnitMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LiabilityRelatedToShareUnitPlans" xlink:label="loc_hbm_LiabilityRelatedToShareUnitPlans_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestrictedShareUnitsVestedButUnreleasedAndUnpaid" xlink:label="loc_hbm_RestrictedShareUnitsVestedButUnreleasedAndUnpaid_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DescriptionOfStockOptionPlanNumberOfOptionsAuthorized" xlink:label="loc_hbm_DescriptionOfStockOptionPlanNumberOfOptionsAuthorized_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MaximumNumberOfCommonSharesPurchaseableUnderStockOptionPlan" xlink:label="loc_hbm_MaximumNumberOfCommonSharesPurchaseableUnderStockOptionPlan_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_17"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_1" xlink:to="loc_hbm_StockOptionPlanPriorToMayTwoZeroZeroEightAmendmentMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_1" xlink:to="loc_hbm_StockOptionPlanMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_1" xlink:to="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1" xlink:to="loc_hbm_ClassesOfUnitsAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ClassesOfUnitsAxis_6" xlink:to="loc_hbm_ClassesOfUnitsDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_6" xlink:to="loc_hbm_DeferredShareUnitMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_6" xlink:to="loc_hbm_RestrictedShareUnitMember_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_6" xlink:to="loc_hbm_PerformanceShareUnitMember_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ClassesOfUnitsAxis_6" xlink:to="loc_hbm_ClassesOfUnitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_LiabilityRelatedToShareUnitPlans_13" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_RestrictedShareUnitsVestedButUnreleasedAndUnpaid_14" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_DescriptionOfStockOptionPlanNumberOfOptionsAuthorized_15" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_MaximumNumberOfCommonSharesPurchaseableUnderStockOptionPlan_16" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_17" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsAxis" xlink:label="loc_hbm_ClassesOfUnitsAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredShareUnitMember" xlink:label="loc_hbm_DeferredShareUnitMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestrictedShareUnitMember" xlink:label="loc_hbm_RestrictedShareUnitMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PerformanceShareUnitMember" xlink:label="loc_hbm_PerformanceShareUnitMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ClassesOfUnitsDomain" xlink:label="loc_hbm_ClassesOfUnitsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NumberOfDeferredShareUnitsOutstandingInShareBasedPaymentArrangement" xlink:label="loc_hbm_NumberOfDeferredShareUnitsOutstandingInShareBasedPaymentArrangement_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NumberOfRestrictedShareUnitsOutstandingInShareBasedPaymentArrangement" xlink:label="loc_hbm_NumberOfRestrictedShareUnitsOutstandingInShareBasedPaymentArrangement_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NumberOfPerformanceShareUnitsOutstandingInShareBasedPaymentArrangement" xlink:label="loc_hbm_NumberOfPerformanceShareUnitsOutstandingInShareBasedPaymentArrangement_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted" xlink:label="loc_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NumberOfInstrumentsOtherEquityInstrumentsAddedByPerformanceFactor" xlink:label="loc_hbm_NumberOfInstrumentsOtherEquityInstrumentsAddedByPerformanceFactor_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CreditsForDividends" xlink:label="loc_hbm_CreditsForDividends_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NumberOfOtherEquityInstrumentsReleasedInShareBasedPaymentArrangement" xlink:label="loc_hbm_NumberOfOtherEquityInstrumentsReleasedInShareBasedPaymentArrangement_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesRecoveryRecognizedDuringYearRelatedToGrantOfDeferredShareUnitsAsWellAsMarkToMarketAdjustments" xlink:label="loc_hbm_ExpensesRecoveryRecognizedDuringYearRelatedToGrantOfDeferredShareUnitsAsWellAsMarkToMarketAdjustments_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PaymentsMadeRelatedToShareUnits" xlink:label="loc_hbm_PaymentsMadeRelatedToShareUnits_19"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_1" xlink:to="loc_hbm_ClassesOfUnitsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ClassesOfUnitsAxis_1" xlink:to="loc_hbm_ClassesOfUnitsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_DeferredShareUnitMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_RestrictedShareUnitMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ClassesOfUnitsDomain_1" xlink:to="loc_hbm_PerformanceShareUnitMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ClassesOfUnitsAxis_1" xlink:to="loc_hbm_ClassesOfUnitsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_NumberOfDeferredShareUnitsOutstandingInShareBasedPaymentArrangement_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_NumberOfRestrictedShareUnitsOutstandingInShareBasedPaymentArrangement_9" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_NumberOfPerformanceShareUnitsOutstandingInShareBasedPaymentArrangement_10" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted_11" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_NumberOfInstrumentsOtherEquityInstrumentsAddedByPerformanceFactor_12" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_CreditsForDividends_13" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement_14" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_NumberOfOtherEquityInstrumentsReleasedInShareBasedPaymentArrangement_15" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement_16" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019_17" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_ExpensesRecoveryRecognizedDuringYearRelatedToGrantOfDeferredShareUnitsAsWellAsMarkToMarketAdjustments_18" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_0" xlink:to="loc_hbm_PaymentsMadeRelatedToShareUnits_19" order="120" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/SharebasedPaymentScheduleOfRangeOfExercisePricesOfShareOptionsDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems" xlink:label="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable" xlink:label="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis" xlink:label="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" xlink:label="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesOneMember" xlink:label="loc_hbm_RangeOfExercisePricesOneMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesTwoMember" xlink:label="loc_hbm_RangeOfExercisePricesTwoMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesThreeMember" xlink:label="loc_hbm_RangeOfExercisePricesThreeMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesFourMember" xlink:label="loc_hbm_RangeOfExercisePricesFourMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesFiveMember" xlink:label="loc_hbm_RangeOfExercisePricesFiveMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesSixMember" xlink:label="loc_hbm_RangeOfExercisePricesSixMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesSevenMember" xlink:label="loc_hbm_RangeOfExercisePricesSevenMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesEightMember" xlink:label="loc_hbm_RangeOfExercisePricesEightMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfExercisePricesNineMember" xlink:label="loc_hbm_RangeOfExercisePricesNineMember_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain" xlink:label="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfOutstandingShareOptions" xlink:label="loc_ifrs-full_NumberOfOutstandingShareOptions_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:label="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:label="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_22"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019_23"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable_1" xlink:to="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis_1" xlink:to="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesOneMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesTwoMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesThreeMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesFourMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesFiveMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesSixMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesSevenMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesEightMember_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_1" xlink:to="loc_hbm_RangeOfExercisePricesNineMember_9" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsAxis_1" xlink:to="loc_ifrs-full_RangesOfExercisePricesForOutstandingShareOptionsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable_1" xlink:to="loc_ifrs-full_RangeAxis_13" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_13" xlink:to="loc_ifrs-full_RangeDomain_13" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_13" xlink:to="loc_ifrs-full_BottomOfRangeMember_13" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_13" xlink:to="loc_ifrs-full_TopOfRangeMember_14" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_13" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems_0" xlink:to="loc_ifrs-full_NumberOfOutstandingShareOptions_19" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems_0" xlink:to="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_20" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems_0" xlink:to="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_21" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems_0" xlink:to="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_22" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems_0" xlink:to="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019_23" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfFairValueOfFinancialInstrumentsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis" xlink:label="loc_srt_MajorCustomersAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorCustomersDomain" xlink:label="loc_ifrs-full_MajorCustomersDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerOneMember" xlink:label="loc_hbm_CustomerOneMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerTwoMember" xlink:label="loc_hbm_CustomerTwoMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorCustomersDomain" xlink:label="loc_ifrs-full_MajorCustomersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfContractsAxis" xlink:label="loc_ifrs-full_TypesOfContractsAxis_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfContractsDomain" xlink:label="loc_ifrs-full_TypesOfContractsDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperFixedForFloatingSwapsMember" xlink:label="loc_hbm_CopperFixedForFloatingSwapsMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldFixedForFloatingSwapsMember" xlink:label="loc_hbm_GoldFixedForFloatingSwapsMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ZincFixedForFloatingSwapsMember" xlink:label="loc_hbm_ZincFixedForFloatingSwapsMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperForwardSaleMember" xlink:label="loc_hbm_CopperForwardSaleMember_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperCostlessCollarsMember" xlink:label="loc_hbm_CopperCostlessCollarsMember_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldCostlessCollarsMember" xlink:label="loc_hbm_GoldCostlessCollarsMember_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ForwardContractMember" xlink:label="loc_ifrs-full_ForwardContractMember_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FixedpriceContractsMember" xlink:label="loc_ifrs-full_FixedpriceContractsMember_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProvisionalPricingCopperMember" xlink:label="loc_hbm_ProvisionalPricingCopperMember_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProvisionalPricingCopperAndZincMember" xlink:label="loc_hbm_ProvisionalPricingCopperAndZincMember_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProvisionalPricingGoldMember" xlink:label="loc_hbm_ProvisionalPricingGoldMember_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProvisionalPricingSilverMember" xlink:label="loc_hbm_ProvisionalPricingSilverMember_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProvisionalPricingOtherEmbeddedDerivativesMember" xlink:label="loc_hbm_ProvisionalPricingOtherEmbeddedDerivativesMember_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PampacanchaDeliveryObligationMember" xlink:label="loc_hbm_PampacanchaDeliveryObligationMember_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfContractsDomain" xlink:label="loc_ifrs-full_TypesOfContractsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_29"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PrepaymentOptionEmbeddedDerivative" xlink:label="loc_hbm_PrepaymentOptionEmbeddedDerivative_34"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DiscountRateOnStreamingAgreement" xlink:label="loc_hbm_DiscountRateOnStreamingAgreement_35"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PoundsOfCopperFixedForFloatingSwaps" xlink:label="loc_hbm_PoundsOfCopperFixedForFloatingSwaps_36"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AveragePriceRecordedForCopperFixedForFloatingSwap" xlink:label="loc_hbm_AveragePriceRecordedForCopperFixedForFloatingSwap_37"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OuncesOfNetGoldSwapsOutstanding" xlink:label="loc_hbm_OuncesOfNetGoldSwapsOutstanding_38"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AveragePriceRecordedForGoldFixedForFloatingSwaps" xlink:label="loc_hbm_AveragePriceRecordedForGoldFixedForFloatingSwaps_39"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TonnesOfCopperProduction" xlink:label="loc_hbm_TonnesOfCopperProduction_40"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PoundsOfCopperForwardsOutstanding" xlink:label="loc_hbm_PoundsOfCopperForwardsOutstanding_41"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PoundsOfCopperCollarsOutstanding" xlink:label="loc_hbm_PoundsOfCopperCollarsOutstanding_42"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AveragePriceRecordedForCopperForwardsOutstanding" xlink:label="loc_hbm_AveragePriceRecordedForCopperForwardsOutstanding_43"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AveragePriceRecordedForCopperCostlessOutstanding" xlink:label="loc_hbm_AveragePriceRecordedForCopperCostlessOutstanding_44"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageCapPriceRecordedForCopperFloatingSwap" xlink:label="loc_hbm_AverageCapPriceRecordedForCopperFloatingSwap_45"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageFloorPrice" xlink:label="loc_hbm_AverageFloorPrice_46"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageCapPrice" xlink:label="loc_hbm_AverageCapPrice_47"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TonnesOfGoldOrSilverForwardSalesContracts" xlink:label="loc_hbm_TonnesOfGoldOrSilverForwardSalesContracts_48"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PoundsOfZincFixedForFloatingSwaps" xlink:label="loc_hbm_PoundsOfZincFixedForFloatingSwaps_49"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AveragePriceRecordedForZincFixedForFloatingSwap" xlink:label="loc_hbm_AveragePriceRecordedForZincFixedForFloatingSwap_50"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfForwardGoldOrSilverSalesContractsForPricesRangedBetweenThesePrices" xlink:label="loc_hbm_RangeOfForwardGoldOrSilverSalesContractsForPricesRangedBetweenThesePrices_51"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PoundsOfZincForwardSalesContracts" xlink:label="loc_hbm_PoundsOfZincForwardSalesContracts_52"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_UnsettledCopperCollars" xlink:label="loc_hbm_UnsettledCopperCollars_53"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RangeOfZincForwardSalesContractsForPricesRangedBetweenThesePrices" xlink:label="loc_hbm_RangeOfZincForwardSalesContractsForPricesRangedBetweenThesePrices_54"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TonnesOfCopperContractsAwaitingFinalProvisionalPricing" xlink:label="loc_hbm_TonnesOfCopperContractsAwaitingFinalProvisionalPricing_55"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TonnesOfZincContractsAwaitingFinalProvisionalPricing" xlink:label="loc_hbm_TonnesOfZincContractsAwaitingFinalProvisionalPricing_56"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OuncesOfGoldContractsAwaitingFinalProvisionalPricing" xlink:label="loc_hbm_OuncesOfGoldContractsAwaitingFinalProvisionalPricing_57"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OuncesOfSilverContractsAwaitingFinalProvisionalPricing" xlink:label="loc_hbm_OuncesOfSilverContractsAwaitingFinalProvisionalPricing_58"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets" xlink:label="loc_ifrs-full_DerivativeFinancialAssets_59"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_60"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TradeAndOtherPayablesEmbeddedDerivatives" xlink:label="loc_hbm_TradeAndOtherPayablesEmbeddedDerivatives_61"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PreciousMetalCreditsDeliveredToSettleLiability" xlink:label="loc_hbm_PreciousMetalCreditsDeliveredToSettleLiability_62"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AveragePriceRecordedForGoldSwapsOutstanding" xlink:label="loc_hbm_AveragePriceRecordedForGoldSwapsOutstanding_63"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldPrepaymentLiability" xlink:label="loc_hbm_GoldPrepaymentLiability_64"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DepositsAndOtherInvestmentsWithScheduleOneCanadianBanksAsPercentageOfTotalCashAndCashEquivalents" xlink:label="loc_hbm_DepositsAndOtherInvestmentsWithScheduleOneCanadianBanksAsPercentageOfTotalCashAndCashEquivalents_65"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LettersOfCreditIssuedToSupportReclamationOrPensionObligations" xlink:label="loc_hbm_LettersOfCreditIssuedToSupportReclamationOrPensionObligations_66"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedCashAndCashEquivalents" xlink:label="loc_ifrs-full_RestrictedCashAndCashEquivalents_67"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WarrantsIssuedAcquisition" xlink:label="loc_hbm_WarrantsIssuedAcquisition_68"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WarrantsIssuedAcquisitionExercisePrice" xlink:label="loc_hbm_WarrantsIssuedAcquisitionExercisePrice_69"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PercentageOfEntitysTradeReceivablesThatAreInsured" xlink:label="loc_hbm_PercentageOfEntitysTradeReceivablesThatAreInsured_70"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CreditInsuranceDeductible" xlink:label="loc_hbm_CreditInsuranceDeductible_71"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_PercentageOfReceivablesThatRepresentLargestCustomers" xlink:label="loc_hbm_PercentageOfReceivablesThatRepresentLargestCustomers_72"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TradeReceivablesAgedOverThirtyDays" xlink:label="loc_hbm_TradeReceivablesAgedOverThirtyDays_73"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmountOfLiabilitySettled" xlink:label="loc_hbm_AmountOfLiabilitySettled_74"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_srt_MajorCustomersAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_1" xlink:to="loc_ifrs-full_MajorCustomersDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerOneMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerTwoMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_1" xlink:to="loc_ifrs-full_MajorCustomersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_TypesOfContractsAxis_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfContractsAxis_6" xlink:to="loc_ifrs-full_TypesOfContractsDomain_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_CopperFixedForFloatingSwapsMember_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_GoldFixedForFloatingSwapsMember_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_ZincFixedForFloatingSwapsMember_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_CopperForwardSaleMember_9" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_CopperCostlessCollarsMember_10" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_GoldCostlessCollarsMember_11" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_ifrs-full_ForwardContractMember_12" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_ifrs-full_FixedpriceContractsMember_13" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_ProvisionalPricingCopperMember_14" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_ProvisionalPricingCopperAndZincMember_15" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_ProvisionalPricingGoldMember_16" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_ProvisionalPricingSilverMember_17" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_ProvisionalPricingOtherEmbeddedDerivativesMember_18" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfContractsDomain_6" xlink:to="loc_hbm_PampacanchaDeliveryObligationMember_19" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfContractsAxis_6" xlink:to="loc_ifrs-full_TypesOfContractsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_23" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_23" xlink:to="loc_ifrs-full_SegmentsDomain_23" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_23" xlink:to="loc_country_PE_23" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_23" xlink:to="loc_hbm_ManitobaMember_24" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_23" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_RangeAxis_28" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_28" xlink:to="loc_ifrs-full_RangeDomain_28" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_28" xlink:to="loc_ifrs-full_BottomOfRangeMember_28" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_28" xlink:to="loc_ifrs-full_TopOfRangeMember_29" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_28" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PrepaymentOptionEmbeddedDerivative_34" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_DiscountRateOnStreamingAgreement_35" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PoundsOfCopperFixedForFloatingSwaps_36" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AveragePriceRecordedForCopperFixedForFloatingSwap_37" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_OuncesOfNetGoldSwapsOutstanding_38" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AveragePriceRecordedForGoldFixedForFloatingSwaps_39" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_TonnesOfCopperProduction_40" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PoundsOfCopperForwardsOutstanding_41" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PoundsOfCopperCollarsOutstanding_42" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AveragePriceRecordedForCopperForwardsOutstanding_43" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AveragePriceRecordedForCopperCostlessOutstanding_44" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AverageCapPriceRecordedForCopperFloatingSwap_45" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AverageFloorPrice_46" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AverageCapPrice_47" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_TonnesOfGoldOrSilverForwardSalesContracts_48" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PoundsOfZincFixedForFloatingSwaps_49" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AveragePriceRecordedForZincFixedForFloatingSwap_50" order="170" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_RangeOfForwardGoldOrSilverSalesContractsForPricesRangedBetweenThesePrices_51" order="180" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PoundsOfZincForwardSalesContracts_52" order="190" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_UnsettledCopperCollars_53" order="200" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_RangeOfZincForwardSalesContractsForPricesRangedBetweenThesePrices_54" order="210" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_TonnesOfCopperContractsAwaitingFinalProvisionalPricing_55" order="220" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_TonnesOfZincContractsAwaitingFinalProvisionalPricing_56" order="230" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_OuncesOfGoldContractsAwaitingFinalProvisionalPricing_57" order="240" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_OuncesOfSilverContractsAwaitingFinalProvisionalPricing_58" order="250" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialAssets_59" order="260" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_60" order="270" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_TradeAndOtherPayablesEmbeddedDerivatives_61" order="280" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PreciousMetalCreditsDeliveredToSettleLiability_62" order="290" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AveragePriceRecordedForGoldSwapsOutstanding_63" order="300" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_GoldPrepaymentLiability_64" order="310" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_DepositsAndOtherInvestmentsWithScheduleOneCanadianBanksAsPercentageOfTotalCashAndCashEquivalents_65" order="320" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_LettersOfCreditIssuedToSupportReclamationOrPensionObligations_66" order="330" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_RestrictedCashAndCashEquivalents_67" order="340" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_WarrantsIssuedAcquisition_68" order="350" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_WarrantsIssuedAcquisitionExercisePrice_69" order="360" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PercentageOfEntitysTradeReceivablesThatAreInsured_70" order="370" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_CreditInsuranceDeductible_71" order="380" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_PercentageOfReceivablesThatRepresentLargestCustomers_72" order="390" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_TradeReceivablesAgedOverThirtyDays_73" order="400" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AmountOfLiabilitySettled_74" order="410" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfFairValueMeasurementExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis" xlink:label="loc_ifrs-full_MeasurementAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain" xlink:label="loc_ifrs-full_MeasurementDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AtFairValueMember" xlink:label="loc_ifrs-full_AtFairValueMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CarryingAmountsMember" xlink:label="loc_hbm_CarryingAmountsMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain" xlink:label="loc_ifrs-full_MeasurementDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="loc_ifrs-full_CashAndCashEquivalents_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:label="loc_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CollateralDeposits" xlink:label="loc_hbm_CollateralDeposits_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GuaranteedInvestmentCertificates" xlink:label="loc_hbm_GuaranteedInvestmentCertificates_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedCashAndCashEquivalents" xlink:label="loc_ifrs-full_RestrictedCashAndCashEquivalents_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReceivables" xlink:label="loc_ifrs-full_OtherReceivables_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets" xlink:label="loc_ifrs-full_DerivativeFinancialAssets_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets" xlink:label="loc_ifrs-full_FinancialAssets_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayables" xlink:label="loc_ifrs-full_TradeAndOtherPayables_16"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredAcquisitionConsiderationNonCurrent" xlink:label="loc_hbm_DeferredAcquisitionConsiderationNonCurrent_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContingentAcquisitionConsideration" xlink:label="loc_hbm_ContingentAcquisitionConsideration_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementsWithCommunities" xlink:label="loc_hbm_AgreementsWithCommunities_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NoncurrentWheatonRefundLiability" xlink:label="loc_hbm_NoncurrentWheatonRefundLiability_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotesAndDebenturesIssued" xlink:label="loc_ifrs-full_NotesAndDebenturesIssued_21"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorSecuredRevolvingCreditFacilities" xlink:label="loc_hbm_SeniorSecuredRevolvingCreditFacilities_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldPrepaymentLiability" xlink:label="loc_hbm_GoldPrepaymentLiability_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilities" xlink:label="loc_ifrs-full_FinancialLiabilities_25"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_1" xlink:to="loc_ifrs-full_MeasurementAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MeasurementAxis_1" xlink:to="loc_ifrs-full_MeasurementDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MeasurementDomain_1" xlink:to="loc_ifrs-full_AtFairValueMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MeasurementDomain_1" xlink:to="loc_hbm_CarryingAmountsMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MeasurementAxis_1" xlink:to="loc_ifrs-full_MeasurementDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_CashAndCashEquivalents_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_CollateralDeposits_9" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_GuaranteedInvestmentCertificates_10" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_RestrictedCashAndCashEquivalents_11" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_OtherReceivables_12" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialAssets_13" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_14" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_FinancialAssets_15" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_TradeAndOtherPayables_16" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_DeferredAcquisitionConsiderationNonCurrent_17" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_ContingentAcquisitionConsideration_18" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_AgreementsWithCommunities_19" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_NoncurrentWheatonRefundLiability_20" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_NotesAndDebenturesIssued_21" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_SeniorSecuredRevolvingCreditFacilities_22" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_GoldPrepaymentLiability_23" order="170" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_24" order="180" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_FinancialLiabilities_25" order="190" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAndLiabilitiesExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember" xlink:label="loc_ifrs-full_Level1OfFairValueHierarchyMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember" xlink:label="loc_ifrs-full_Level2OfFairValueHierarchyMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis" xlink:label="loc_ifrs-full_MeasurementAxis_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain" xlink:label="loc_ifrs-full_MeasurementDomain_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AtFairValueMember" xlink:label="loc_ifrs-full_AtFairValueMember_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain" xlink:label="loc_ifrs-full_MeasurementDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TradeAndOtherReceivablesEmbeddedDerivatives" xlink:label="loc_hbm_TradeAndOtherReceivablesEmbeddedDerivatives_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ProvisionallyPricedReceivables" xlink:label="loc_hbm_ProvisionallyPricedReceivables_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets" xlink:label="loc_ifrs-full_DerivativeFinancialAssets_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAvailableforsale" xlink:label="loc_ifrs-full_FinancialAssetsAvailableforsale_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValue" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValue_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TradeAndOtherPayablesEmbeddedDerivatives" xlink:label="loc_hbm_TradeAndOtherPayablesEmbeddedDerivatives_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_19"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldPrepaymentLiability" xlink:label="loc_hbm_GoldPrepaymentLiability_20"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WarrantLiabilities" xlink:label="loc_hbm_WarrantLiabilities_21"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredAcquisitionConsiderationNonCurrent" xlink:label="loc_hbm_DeferredAcquisitionConsiderationNonCurrent_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContingentAcquisitionConsideration" xlink:label="loc_hbm_ContingentAcquisitionConsideration_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementsWithCommunities" xlink:label="loc_hbm_AgreementsWithCommunities_24"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NoncurrentWheatonRefundLiability" xlink:label="loc_hbm_NoncurrentWheatonRefundLiability_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotesAndDebenturesIssued" xlink:label="loc_ifrs-full_NotesAndDebenturesIssued_26"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OptionLiabilities" xlink:label="loc_hbm_OptionLiabilities_27"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValue" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValue_28"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_1" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_1" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_1" xlink:to="loc_ifrs-full_Level1OfFairValueHierarchyMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_1" xlink:to="loc_ifrs-full_Level2OfFairValueHierarchyMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_1" xlink:to="loc_ifrs-full_Level3OfFairValueHierarchyMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis_1" xlink:to="loc_ifrs-full_LevelsOfFairValueHierarchyDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_1" xlink:to="loc_ifrs-full_MeasurementAxis_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MeasurementAxis_7" xlink:to="loc_ifrs-full_MeasurementDomain_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MeasurementDomain_7" xlink:to="loc_ifrs-full_AtFairValueMember_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MeasurementAxis_7" xlink:to="loc_ifrs-full_MeasurementDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_TradeAndOtherReceivablesEmbeddedDerivatives_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_ProvisionallyPricedReceivables_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialAssets_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_15" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_FinancialAssetsAvailableforsale_16" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_FinancialAssetsAtFairValue_17" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_TradeAndOtherPayablesEmbeddedDerivatives_18" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_19" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_GoldPrepaymentLiability_20" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_WarrantLiabilities_21" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_DeferredAcquisitionConsiderationNonCurrent_22" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_ContingentAcquisitionConsideration_23" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_AgreementsWithCommunities_24" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_NoncurrentWheatonRefundLiability_25" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_NotesAndDebenturesIssued_26" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_hbm_OptionLiabilities_27" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_0" xlink:to="loc_ifrs-full_FinancialLiabilitiesAtFairValue_28" order="170" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/FinancialInstrumentsScheduleOfNetPositionConsistedOfContractsAwaitingFinalPricingDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems" xlink:label="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable" xlink:label="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfFinancialAssetsAxis" xlink:label="loc_ifrs-full_TypesOfFinancialAssetsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfFinancialAssetsDomain" xlink:label="loc_ifrs-full_TypesOfFinancialAssetsDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EmbeddedDerivativesMember" xlink:label="loc_hbm_EmbeddedDerivativesMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfFinancialAssetsDomain" xlink:label="loc_ifrs-full_TypesOfFinancialAssetsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MetalInConcentrateAxis" xlink:label="loc_hbm_MetalInConcentrateAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MetalInConcentrateDomain" xlink:label="loc_hbm_MetalInConcentrateDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMember" xlink:label="loc_hbm_CopperMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldMetalMember" xlink:label="loc_hbm_GoldMetalMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SilverMember" xlink:label="loc_hbm_SilverMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ZincMember" xlink:label="loc_hbm_ZincMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MetalInConcentrateDomain" xlink:label="loc_hbm_MetalInConcentrateDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SalesAwaitingFinalPricing" xlink:label="loc_hbm_SalesAwaitingFinalPricing_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AverageYearToDatePricePerUnit" xlink:label="loc_hbm_AverageYearToDatePricePerUnit_14"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable_1" xlink:to="loc_ifrs-full_TypesOfFinancialAssetsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfFinancialAssetsAxis_1" xlink:to="loc_ifrs-full_TypesOfFinancialAssetsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfFinancialAssetsDomain_1" xlink:to="loc_hbm_EmbeddedDerivativesMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfFinancialAssetsAxis_1" xlink:to="loc_ifrs-full_TypesOfFinancialAssetsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable_1" xlink:to="loc_hbm_MetalInConcentrateAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_MetalInConcentrateAxis_5" xlink:to="loc_hbm_MetalInConcentrateDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_MetalInConcentrateDomain_5" xlink:to="loc_hbm_CopperMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_MetalInConcentrateDomain_5" xlink:to="loc_hbm_GoldMetalMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_MetalInConcentrateDomain_5" xlink:to="loc_hbm_SilverMember_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_MetalInConcentrateDomain_5" xlink:to="loc_hbm_ZincMember_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_MetalInConcentrateAxis_5" xlink:to="loc_hbm_MetalInConcentrateDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems_0" xlink:to="loc_hbm_SalesAwaitingFinalPricing_13" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems_0" xlink:to="loc_hbm_AverageYearToDatePricePerUnit_14" order="20" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfDetailedInformationAboutForeignCurrencyRiskExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="loc_ifrs-full_TypesOfRisksAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrencyRiskMember" xlink:label="loc_ifrs-full_CurrencyRiskMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksAxis" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksDomain" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmountsHeldInCadMember" xlink:label="loc_hbm_AmountsHeldInCadMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmountsHeldInUsdMember" xlink:label="loc_hbm_AmountsHeldInUsdMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmountsHeldInPenMember" xlink:label="loc_hbm_AmountsHeldInPenMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksDomain" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="loc_ifrs-full_CashAndCashEquivalents_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReceivables" xlink:label="loc_ifrs-full_OtherReceivables_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedCashAndCashEquivalents" xlink:label="loc_ifrs-full_RestrictedCashAndCashEquivalents_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinancialAssets" xlink:label="loc_ifrs-full_OtherFinancialAssets_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayables" xlink:label="loc_ifrs-full_TradeAndOtherPayables_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinancialLiabilities" xlink:label="loc_ifrs-full_OtherFinancialLiabilities_17"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NetFinancialAssetsLiabilities" xlink:label="loc_hbm_NetFinancialAssetsLiabilities_18"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_TypesOfRisksAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfRisksDomain_1" xlink:to="loc_ifrs-full_CurrencyRiskMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_AmountsHeldInCadMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_AmountsHeldInUsdMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_AmountsHeldInPenMember_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_CashAndCashEquivalents_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_OtherReceivables_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_RestrictedCashAndCashEquivalents_14" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_OtherFinancialAssets_15" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_TradeAndOtherPayables_16" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_OtherFinancialLiabilities_17" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_NetFinancialAssetsLiabilities_18" order="70" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfForeignCurrencyRiskExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="loc_ifrs-full_TypesOfRisksAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrencyRiskMember" xlink:label="loc_ifrs-full_CurrencyRiskMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksAxis" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksDomain" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_UsdCadExchangeRateMember" xlink:label="loc_hbm_UsdCadExchangeRateMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_USDPENExchangeRateMember" xlink:label="loc_hbm_USDPENExchangeRateMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksDomain" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SensitivityAnalysisVariancePercentage" xlink:label="loc_hbm_SensitivityAnalysisVariancePercentage_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceIncreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome" xlink:label="loc_hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceDecreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome" xlink:label="loc_hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_TypesOfRisksAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfRisksDomain_1" xlink:to="loc_ifrs-full_CurrencyRiskMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_UsdCadExchangeRateMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_USDPENExchangeRateMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_SensitivityAnalysisVariancePercentage_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_12" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome_13" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_14" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome_15" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfCommodityPriceRiskExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="loc_ifrs-full_TypesOfRisksAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CommodityPriceRiskMember" xlink:label="loc_ifrs-full_CommodityPriceRiskMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksAxis" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksDomain" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperPricesMember" xlink:label="loc_hbm_CopperPricesMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldPricesMember" xlink:label="loc_hbm_GoldPricesMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ZincPricesMember" xlink:label="loc_hbm_ZincPricesMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_VariancesMeasuredToAnalyzeRisksDomain" xlink:label="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SensitivityAnalysisVariancePrice" xlink:label="loc_hbm_SensitivityAnalysisVariancePrice_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceIncreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceDecreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_14"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_TypesOfRisksAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfRisksDomain_1" xlink:to="loc_ifrs-full_CommodityPriceRiskMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_CopperPricesMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_GoldPricesMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_5" xlink:to="loc_hbm_ZincPricesMember_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_VariancesMeasuredToAnalyzeRisksAxis_5" xlink:to="loc_hbm_VariancesMeasuredToAnalyzeRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_SensitivityAnalysisVariancePrice_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_14" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSharePriceRiskExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="loc_ifrs-full_TypesOfRisksAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityPriceRiskMember" xlink:label="loc_ifrs-full_EquityPriceRiskMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SensitivityAnalysisVariancePercentage" xlink:label="loc_hbm_SensitivityAnalysisVariancePercentage_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceIncreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome" xlink:label="loc_hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceDecreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome" xlink:label="loc_hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome_13"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_TypesOfRisksAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfRisksDomain_1" xlink:to="loc_ifrs-full_EquityPriceRiskMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_dei_LegalEntityAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_5" xlink:to="loc_dei_EntityDomain_Default" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_5" xlink:to="loc_dei_EntityDomain_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_SensitivityAnalysisVariancePercentage_9" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_10" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome_11" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_12" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome_13" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfInterestRateRiskExplanatoryTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="loc_ifrs-full_TypesOfRisksAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRateRiskMember" xlink:label="loc_ifrs-full_InterestRateRiskMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain" xlink:label="loc_ifrs-full_TypesOfRisksDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SensitivityAnalysisVariancePercentage" xlink:label="loc_hbm_SensitivityAnalysisVariancePercentage_11"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceIncreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome" xlink:label="loc_hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome_13"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceDecreaseOnAfterTaxProfit" xlink:label="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome" xlink:label="loc_hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_TypesOfRisksAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_TypesOfRisksDomain_1" xlink:to="loc_ifrs-full_InterestRateRiskMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_TypesOfRisksAxis_1" xlink:to="loc_ifrs-full_TypesOfRisksDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_RangeAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_5" xlink:to="loc_ifrs-full_RangeDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_5" xlink:to="loc_ifrs-full_BottomOfRangeMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_5" xlink:to="loc_ifrs-full_TopOfRangeMember_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_5" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_SensitivityAnalysisVariancePercentage_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceIncreaseOnAfterTaxProfit_12" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceIncreaseOnOtherComprehensiveIncome_13" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceDecreaseOnAfterTaxProfit_14" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_EffectOfVarianceDecreaseOnOtherComprehensiveIncome_15" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfLiquidityRiskExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAxis" xlink:label="loc_ifrs-full_MaturityAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="loc_ifrs-full_MaturityDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotLaterThanOneYearMember" xlink:label="loc_ifrs-full_NotLaterThanOneYearMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:label="loc_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember" xlink:label="loc_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFiveYearsMember" xlink:label="loc_ifrs-full_LaterThanFiveYearsMember_4"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="loc_ifrs-full_MaturityDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LiquidityRiskAxis" xlink:label="loc_hbm_LiquidityRiskAxis_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManagingLiquidityRiskDomain" xlink:label="loc_hbm_ManagingLiquidityRiskDomain_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CarryingAmountForAssetsAndLiabilitiesUsedToManageLiquidityRiskMember" xlink:label="loc_hbm_CarryingAmountForAssetsAndLiabilitiesUsedToManageLiquidityRiskMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContractualCashFlowsMember" xlink:label="loc_hbm_ContractualCashFlowsMember_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManagingLiquidityRiskDomain" xlink:label="loc_hbm_ManagingLiquidityRiskDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="loc_ifrs-full_CashAndCashEquivalents_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:label="loc_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CollateralDeposits" xlink:label="loc_hbm_CollateralDeposits_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestrictedCashAndCashEquivalents" xlink:label="loc_ifrs-full_RestrictedCashAndCashEquivalents_17"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReceivables" xlink:label="loc_ifrs-full_OtherReceivables_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets" xlink:label="loc_ifrs-full_DerivativeFinancialAssets_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsHeldForManagingLiquidityRisk" xlink:label="loc_ifrs-full_FinancialAssetsHeldForManagingLiquidityRisk_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayables" xlink:label="loc_ifrs-full_TradeAndOtherPayables_21"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DeferredAcquisitionConsiderationNonCurrent" xlink:label="loc_hbm_DeferredAcquisitionConsiderationNonCurrent_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ContingentAcquisitionConsideration" xlink:label="loc_hbm_ContingentAcquisitionConsideration_23"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementsWithCommunities" xlink:label="loc_hbm_AgreementsWithCommunities_24"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredIncomeOtherThanContractLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="loc_ifrs-full_DeferredIncomeOtherThanContractLiabilitiesRecognisedAsOfAcquisitionDate_25"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotesAndDebenturesIssued" xlink:label="loc_ifrs-full_NotesAndDebenturesIssued_26"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SeniorSecuredRevolvingCreditFacilities" xlink:label="loc_hbm_SeniorSecuredRevolvingCreditFacilities_27"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldPrepaymentLiability" xlink:label="loc_hbm_GoldPrepaymentLiability_28"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NoncurrentWheatonRefundLiability" xlink:label="loc_hbm_NoncurrentWheatonRefundLiability_29"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NonDerivativeFinancialLiabilities" xlink:label="loc_hbm_NonDerivativeFinancialLiabilities_30"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_WarrantLiabilities" xlink:label="loc_hbm_WarrantLiabilities_31"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_GoldOption" xlink:label="loc_hbm_GoldOption_32"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_TradeAndOtherPayablesEmbeddedDerivatives" xlink:label="loc_hbm_TradeAndOtherPayablesEmbeddedDerivatives_33"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_NonHedgeDerivativeContracts" xlink:label="loc_hbm_NonHedgeDerivativeContracts_34"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities_35"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_ifrs-full_MaturityAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MaturityAxis_1" xlink:to="loc_ifrs-full_MaturityDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_1" xlink:to="loc_ifrs-full_NotLaterThanOneYearMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_1" xlink:to="loc_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_1" xlink:to="loc_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_1" xlink:to="loc_ifrs-full_LaterThanFiveYearsMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MaturityAxis_1" xlink:to="loc_ifrs-full_MaturityDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable_1" xlink:to="loc_hbm_LiquidityRiskAxis_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_LiquidityRiskAxis_8" xlink:to="loc_hbm_ManagingLiquidityRiskDomain_8" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ManagingLiquidityRiskDomain_8" xlink:to="loc_hbm_CarryingAmountForAssetsAndLiabilitiesUsedToManageLiquidityRiskMember_8" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ManagingLiquidityRiskDomain_8" xlink:to="loc_hbm_ContractualCashFlowsMember_9" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_LiquidityRiskAxis_8" xlink:to="loc_hbm_ManagingLiquidityRiskDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_CashAndCashEquivalents_14" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_15" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_CollateralDeposits_16" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_RestrictedCashAndCashEquivalents_17" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_OtherReceivables_18" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialAssets_19" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_FinancialAssetsHeldForManagingLiquidityRisk_20" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_TradeAndOtherPayables_21" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_DeferredAcquisitionConsiderationNonCurrent_22" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_ContingentAcquisitionConsideration_23" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_AgreementsWithCommunities_24" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DeferredIncomeOtherThanContractLiabilitiesRecognisedAsOfAcquisitionDate_25" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_NotesAndDebenturesIssued_26" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_SeniorSecuredRevolvingCreditFacilities_27" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_GoldPrepaymentLiability_28" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_NoncurrentWheatonRefundLiability_29" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_NonDerivativeFinancialLiabilities_30" order="170" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_WarrantLiabilities_31" order="180" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_GoldOption_32" order="190" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_TradeAndOtherPayablesEmbeddedDerivatives_33" order="200" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_hbm_NonHedgeDerivativeContracts_34" order="210" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_0" xlink:to="loc_ifrs-full_DerivativeFinancialLiabilities_35" order="220" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfCommitmentsAndContingentLiabilitiesExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StatementsLineItems" xlink:label="loc_hbm_StatementsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_StatementsTable" xlink:label="loc_hbm_StatementsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesAxis" xlink:label="loc_ifrs-full_JointVenturesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesDomain" xlink:label="loc_ifrs-full_JointVenturesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReedMineInManitobaMember" xlink:label="loc_hbm_ReedMineInManitobaMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RosemontProjectInArizonaMember" xlink:label="loc_hbm_RosemontProjectInArizonaMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperWorldComplexInArizonaMember" xlink:label="loc_hbm_CopperWorldComplexInArizonaMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesDomain" xlink:label="loc_ifrs-full_JointVenturesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BritishColumbiaSegmentMember" xlink:label="loc_hbm_BritishColumbiaSegmentMember_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA" xlink:label="loc_country_CA_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CapitalCommitmentsAxis" xlink:label="loc_hbm_CapitalCommitmentsAxis_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CapitalCommitmentsDomain" xlink:label="loc_hbm_CapitalCommitmentsDomain_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmountsWhichCanBeTerminatedMember" xlink:label="loc_hbm_AmountsWhichCanBeTerminatedMember_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CapitalCommitmentsDomain" xlink:label="loc_hbm_CapitalCommitmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:label="loc_ifrs-full_InterestExpenseOnLeaseLiabilities_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalCommitments" xlink:label="loc_ifrs-full_CapitalCommitments_20"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_hbm_StatementsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_ifrs-full_JointVenturesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_JointVenturesAxis_1" xlink:to="loc_ifrs-full_JointVenturesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_JointVenturesDomain_1" xlink:to="loc_hbm_ReedMineInManitobaMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_JointVenturesDomain_1" xlink:to="loc_hbm_RosemontProjectInArizonaMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_JointVenturesDomain_1" xlink:to="loc_hbm_CopperWorldComplexInArizonaMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_JointVenturesAxis_1" xlink:to="loc_ifrs-full_JointVenturesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_7" xlink:to="loc_ifrs-full_SegmentsDomain_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_7" xlink:to="loc_hbm_ManitobaMember_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_7" xlink:to="loc_hbm_BritishColumbiaSegmentMember_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_7" xlink:to="loc_country_CA_9" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_7" xlink:to="loc_country_PE_10" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_7" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_StatementsTable_1" xlink:to="loc_hbm_CapitalCommitmentsAxis_14" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_CapitalCommitmentsAxis_14" xlink:to="loc_hbm_CapitalCommitmentsDomain_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_CapitalCommitmentsDomain_14" xlink:to="loc_hbm_AmountsWhichCanBeTerminatedMember_14" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_CapitalCommitmentsAxis_14" xlink:to="loc_hbm_CapitalCommitmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_InterestExpenseOnLeaseLiabilities_19" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_StatementsLineItems_0" xlink:to="loc_ifrs-full_CapitalCommitments_20" order="20" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsTable" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAxis" xlink:label="loc_ifrs-full_MaturityAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="loc_ifrs-full_MaturityDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotLaterThanOneYearMember" xlink:label="loc_ifrs-full_NotLaterThanOneYearMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:label="loc_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFiveYearsMember" xlink:label="loc_ifrs-full_LaterThanFiveYearsMember_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain" xlink:label="loc_ifrs-full_MaturityDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MinimumLeasePaymentsPayableUnderNonCancellableOperatingLease" xlink:label="loc_hbm_MinimumLeasePaymentsPayableUnderNonCancellableOperatingLease_8"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsTable_1" xlink:to="loc_ifrs-full_MaturityAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MaturityAxis_1" xlink:to="loc_ifrs-full_MaturityDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_1" xlink:to="loc_ifrs-full_NotLaterThanOneYearMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_1" xlink:to="loc_ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MaturityDomain_1" xlink:to="loc_ifrs-full_LaterThanFiveYearsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MaturityAxis_1" xlink:to="loc_ifrs-full_MaturityDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsLineItems_0" xlink:to="loc_hbm_MinimumLeasePaymentsPayableUnderNonCancellableOperatingLease_8" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/RelatedPartiesNarrativeDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis" xlink:label="loc_ifrs-full_CounterpartiesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiMaterialsCorporationMember" xlink:label="loc_hbm_MitsubishiMaterialsCorporationMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:label="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:label="loc_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:label="loc_ifrs-full_AmountsReceivableRelatedPartyTransactions_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpense" xlink:label="loc_ifrs-full_InterestExpense_14"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_UnrealizedForeignExchangeGainsLossesOnIntragroupLoanBalances" xlink:label="loc_hbm_UnrealizedForeignExchangeGainsLossesOnIntragroupLoanBalances_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_1" xlink:to="loc_ifrs-full_CounterpartiesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CounterpartiesAxis_1" xlink:to="loc_ifrs-full_CounterpartiesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CounterpartiesDomain_1" xlink:to="loc_hbm_MitsubishiMaterialsCorporationMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CounterpartiesAxis_1" xlink:to="loc_ifrs-full_CounterpartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_5" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_5" xlink:to="loc_ifrs-full_BusinessCombinationsMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_5" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_5" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_11" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions_12" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_ifrs-full_AmountsReceivableRelatedPartyTransactions_13" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_ifrs-full_InterestExpense_14" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_hbm_UnrealizedForeignExchangeGainsLossesOnIntragroupLoanBalances_15" order="50" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfSignificantInvestmentsInSubsidiariesExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HudbayPeruIncMember" xlink:label="loc_hbm_HudbayPeruIncMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HudbayPeruSacMember" xlink:label="loc_hbm_HudbayPeruSacMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HudbayBviIncMember" xlink:label="loc_hbm_HudbayBviIncMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HudbayArizonaCorporationMember" xlink:label="loc_hbm_HudbayArizonaCorporationMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperWorldIncMember" xlink:label="loc_hbm_CopperWorldIncMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MasonResourcesUsIncMember" xlink:label="loc_hbm_MasonResourcesUsIncMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_HudbayArizonaBarbadosSrlMember" xlink:label="loc_hbm_HudbayArizonaBarbadosSrlMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBCLimitedMember" xlink:label="loc_hbm_CopperMountainMineBCLimitedMember_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_13"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_HudbayPeruIncMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_HudbayPeruSacMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_HudbayBviIncMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_HudbayArizonaCorporationMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_CopperWorldIncMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_MasonResourcesUsIncMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_HudbayArizonaBarbadosSrlMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_CopperMountainMineBCLimitedMember_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_0" xlink:to="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_13" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfCashFlowStatementExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SupplementaryCashFlowInformationLineItems" xlink:label="loc_hbm_SupplementaryCashFlowInformationLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_SupplementaryCashFlowInformationTable" xlink:label="loc_hbm_SupplementaryCashFlowInformationTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="loc_ifrs-full_BusinessCombinationsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsMember" xlink:label="loc_ifrs-full_BusinessCombinationsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RosemontProjectMember" xlink:label="loc_hbm_RosemontProjectMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RockcliffMember" xlink:label="loc_hbm_RockcliffMember_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain" xlink:label="loc_ifrs-full_BusinessCombinationsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementAxis" xlink:label="loc_hbm_AgreementAxis_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementDomain" xlink:label="loc_hbm_AgreementDomain_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementsWithCommunitiesMember" xlink:label="loc_hbm_AgreementsWithCommunitiesMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementWithUnitedCopperAndMolyLlcMember" xlink:label="loc_hbm_AgreementWithUnitedCopperAndMolyLlcMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AgreementDomain" xlink:label="loc_hbm_AgreementDomain_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingAgreementsAxis" xlink:label="loc_hbm_EquipmentFinancingAgreementsAxis_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingAgreementsDomain" xlink:label="loc_hbm_EquipmentFinancingAgreementsDomain_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingMember" xlink:label="loc_hbm_EquipmentFinancingMember_12"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EquipmentFinancingAgreementsDomain" xlink:label="loc_hbm_EquipmentFinancingAgreementsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssetsMember" xlink:label="loc_ifrs-full_RightofuseAssetsMember_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="loc_ifrs-full_CarryingAmountMember_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AtCostMember" xlink:label="loc_ifrs-full_AtCostMember_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember" xlink:label="loc_ifrs-full_CarryingAmountMember_Default"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LoanReceivableBalanceWrittenOff" xlink:label="loc_hbm_LoanReceivableBalanceWrittenOff_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ChangeInPropertyPlantAndEquipmentDecommissioningAndRestoration" xlink:label="loc_hbm_ChangeInPropertyPlantAndEquipmentDecommissioningAndRestoration_26"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_27"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment_28"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_SupplementaryCashFlowInformationLineItems_0" xlink:to="loc_hbm_SupplementaryCashFlowInformationTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_SupplementaryCashFlowInformationTable_1" xlink:to="loc_ifrs-full_BusinessCombinationsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsDomain_1" xlink:to="loc_ifrs-full_BusinessCombinationsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_RosemontProjectMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_BusinessCombinationsMember_1" xlink:to="loc_hbm_RockcliffMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_BusinessCombinationsAxis_1" xlink:to="loc_ifrs-full_BusinessCombinationsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_SupplementaryCashFlowInformationTable_1" xlink:to="loc_hbm_AgreementAxis_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_AgreementAxis_7" xlink:to="loc_hbm_AgreementDomain_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_AgreementDomain_7" xlink:to="loc_hbm_AgreementsWithCommunitiesMember_7" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_AgreementDomain_7" xlink:to="loc_hbm_AgreementWithUnitedCopperAndMolyLlcMember_8" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_AgreementAxis_7" xlink:to="loc_hbm_AgreementDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_SupplementaryCashFlowInformationTable_1" xlink:to="loc_hbm_EquipmentFinancingAgreementsAxis_12" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_EquipmentFinancingAgreementsAxis_12" xlink:to="loc_hbm_EquipmentFinancingAgreementsDomain_12" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_EquipmentFinancingAgreementsDomain_12" xlink:to="loc_hbm_EquipmentFinancingMember_12" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_EquipmentFinancingAgreementsAxis_12" xlink:to="loc_hbm_EquipmentFinancingAgreementsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_SupplementaryCashFlowInformationTable_1" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_16" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_16" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_16" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_16" xlink:to="loc_ifrs-full_RightofuseAssetsMember_16" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_16" xlink:to="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_SupplementaryCashFlowInformationTable_1" xlink:to="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_20" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_20" xlink:to="loc_ifrs-full_CarryingAmountMember_20" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CarryingAmountMember_20" xlink:to="loc_ifrs-full_AtCostMember_20" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_20" xlink:to="loc_ifrs-full_CarryingAmountMember_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_SupplementaryCashFlowInformationLineItems_0" xlink:to="loc_hbm_LoanReceivableBalanceWrittenOff_25" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_SupplementaryCashFlowInformationLineItems_0" xlink:to="loc_hbm_ChangeInPropertyPlantAndEquipmentDecommissioningAndRestoration_26" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_SupplementaryCashFlowInformationLineItems_0" xlink:to="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_27" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_SupplementaryCashFlowInformationLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment_28" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/SupplementaryCashFlowInformationDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RevenueAndExpensesLineItems" xlink:label="loc_hbm_RevenueAndExpensesLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfRevenueAndExpensesTable" xlink:label="loc_hbm_DisclosureOfRevenueAndExpensesTable_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesAxis" xlink:label="loc_hbm_ExpensesAxis_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AmortizationOfCommunityAgreementsMember" xlink:label="loc_hbm_AmortizationOfCommunityAgreementsMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShareBasedCompensationPaidMember" xlink:label="loc_hbm_ShareBasedCompensationPaidMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ChangesInNonCurrentAssetsMember" xlink:label="loc_hbm_ChangesInNonCurrentAssetsMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ShareBasedCompensationAndChangeOfControlPaymentsMadeUponAcquisitionOfCopperMountainMember" xlink:label="loc_hbm_ShareBasedCompensationAndChangeOfControlPaymentsMadeUponAcquisitionOfCopperMountainMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ConsiderationReceivedFromSaleOfNonCoreProjectMember" xlink:label="loc_hbm_ConsiderationReceivedFromSaleOfNonCoreProjectMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_LossOnDisposalOfPropertyPlantAndEquipmentMember" xlink:label="loc_hbm_LossOnDisposalOfPropertyPlantAndEquipmentMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_RestructuringManitobaMember" xlink:label="loc_hbm_RestructuringManitobaMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_OtherOperatingExpensesMember" xlink:label="loc_hbm_OtherOperatingExpensesMember_8"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ExpensesDomain" xlink:label="loc_hbm_ExpensesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities" xlink:label="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities_13"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfRevenueAndExpensesTable_1" xlink:to="loc_hbm_ExpensesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_hbm_ExpensesAxis_1" xlink:to="loc_hbm_ExpensesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_AmortizationOfCommunityAgreementsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_ShareBasedCompensationPaidMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_ChangesInNonCurrentAssetsMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_ShareBasedCompensationAndChangeOfControlPaymentsMadeUponAcquisitionOfCopperMountainMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_ConsiderationReceivedFromSaleOfNonCoreProjectMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_LossOnDisposalOfPropertyPlantAndEquipmentMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_RestructuringManitobaMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_ExpensesDomain_1" xlink:to="loc_hbm_OtherOperatingExpensesMember_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_hbm_ExpensesAxis_1" xlink:to="loc_hbm_ExpensesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_RevenueAndExpensesLineItems_0" xlink:to="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities_13" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/NonControllingInterestNarrativeDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfNonControllingInterestLineItems" xlink:label="loc_hbm_DisclosureOfNonControllingInterestLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfNonControllingInterestTable" xlink:label="loc_hbm_DisclosureOfNonControllingInterestTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperMountainMineBcLtdMember" xlink:label="loc_hbm_CopperMountainMineBcLtdMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis" xlink:label="loc_ifrs-full_CounterpartiesAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiMaterialsCorporationMember" xlink:label="loc_hbm_MitsubishiMaterialsCorporationMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis" xlink:label="loc_ifrs-full_RangeAxis_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember" xlink:label="loc_ifrs-full_BottomOfRangeMember_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember" xlink:label="loc_ifrs-full_TopOfRangeMember_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain" xlink:label="loc_ifrs-full_RangeDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:label="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests" xlink:label="loc_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests_17"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_hbm_DisclosureOfNonControllingInterestTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfNonControllingInterestTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_1" xlink:to="loc_hbm_CopperMountainMineBcLtdMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfNonControllingInterestTable_1" xlink:to="loc_ifrs-full_CounterpartiesAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CounterpartiesAxis_5" xlink:to="loc_ifrs-full_CounterpartiesDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CounterpartiesDomain_5" xlink:to="loc_hbm_MitsubishiMaterialsCorporationMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CounterpartiesAxis_5" xlink:to="loc_ifrs-full_CounterpartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfNonControllingInterestTable_1" xlink:to="loc_ifrs-full_RangeAxis_9" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_RangeAxis_9" xlink:to="loc_ifrs-full_RangeDomain_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_9" xlink:to="loc_ifrs-full_BottomOfRangeMember_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_RangeDomain_9" xlink:to="loc_ifrs-full_TopOfRangeMember_10" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_RangeAxis_9" xlink:to="loc_ifrs-full_RangeDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired_15" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_16" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests_17" order="30" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/NonControllingInterestDetails">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfNonControllingInterestLineItems" xlink:label="loc_hbm_DisclosureOfNonControllingInterestLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfNonControllingInterestTable" xlink:label="loc_hbm_DisclosureOfNonControllingInterestTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember" xlink:label="loc_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAbstract" xlink:label="loc_ifrs-full_AssetsAbstract_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="loc_ifrs-full_CashAndCashEquivalents_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherReceivables" xlink:label="loc_ifrs-full_TradeAndOtherReceivables_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Inventories" xlink:label="loc_ifrs-full_Inventories_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAssets" xlink:label="loc_ifrs-full_OtherAssets_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets" xlink:label="loc_ifrs-full_Assets_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesAbstract" xlink:label="loc_ifrs-full_LiabilitiesAbstract_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayables" xlink:label="loc_ifrs-full_TradeAndOtherPayables_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesToRelatedParties" xlink:label="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherLongtermProvisions" xlink:label="loc_ifrs-full_OtherLongtermProvisions_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseLiabilities" xlink:label="loc_ifrs-full_LeaseLiabilities_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilities" xlink:label="loc_ifrs-full_DeferredTaxLiabilities_17"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherLiabilities" xlink:label="loc_ifrs-full_OtherLiabilities_18"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities" xlink:label="loc_ifrs-full_Liabilities_19"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_hbm_DisclosureOfNonControllingInterestTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfNonControllingInterestTable_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_AssetsAbstract_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_6" xlink:to="loc_ifrs-full_CashAndCashEquivalents_6" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_6" xlink:to="loc_ifrs-full_TradeAndOtherReceivables_7" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_6" xlink:to="loc_ifrs-full_Inventories_8" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_6" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment_9" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_6" xlink:to="loc_ifrs-full_OtherAssets_10" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_AssetsAbstract_6" xlink:to="loc_ifrs-full_Assets_11" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_LiabilitiesAbstract_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_13" xlink:to="loc_ifrs-full_TradeAndOtherPayables_13" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_13" xlink:to="loc_ifrs-full_TradeAndOtherPayablesToRelatedParties_14" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_13" xlink:to="loc_ifrs-full_OtherLongtermProvisions_15" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_13" xlink:to="loc_ifrs-full_LeaseLiabilities_16" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_13" xlink:to="loc_ifrs-full_DeferredTaxLiabilities_17" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_13" xlink:to="loc_ifrs-full_OtherLiabilities_18" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_LiabilitiesAbstract_13" xlink:to="loc_ifrs-full_Liabilities_19" order="60" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/NonControllingInterestDetails1">
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfNonControllingInterestLineItems" xlink:label="loc_hbm_DisclosureOfNonControllingInterestLineItems_0"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_DisclosureOfNonControllingInterestTable" xlink:label="loc_hbm_DisclosureOfNonControllingInterestTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember" xlink:label="loc_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue" xlink:label="loc_ifrs-full_Revenue_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MineOperatingCostsIncludedInCostOfSales" xlink:label="loc_hbm_MineOperatingCostsIncludedInCostOfSales_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossProfit" xlink:label="loc_ifrs-full_GrossProfit_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingExpense_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FinanceExpenseRelatedToRelatedParties" xlink:label="loc_hbm_FinanceExpenseRelatedToRelatedParties_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinanceIncomeCost" xlink:label="loc_ifrs-full_OtherFinanceIncomeCost_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome" xlink:label="loc_ifrs-full_ComprehensiveIncome_15"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_hbm_DisclosureOfNonControllingInterestTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_hbm_DisclosureOfNonControllingInterestTable_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_1" xlink:to="loc_ifrs-full_SubsidiariesWithMaterialNoncontrollingInterestsMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_1" xlink:to="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_Revenue_6" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_hbm_MineOperatingCostsIncludedInCostOfSales_7" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_DepreciationAndAmortisationExpense_8" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_GrossProfit_9" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_MiscellaneousOtherOperatingExpense_10" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_hbm_FinanceExpenseRelatedToRelatedParties_11" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_OtherFinanceIncomeCost_12" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_13" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_ProfitLoss_14" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_DisclosureOfNonControllingInterestLineItems_0" xlink:to="loc_ifrs-full_ComprehensiveIncome_15" order="100" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfEntitysReportableSegmentsExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:label="loc_ifrs-full_DisclosureOfMajorCustomersLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMajorCustomersTable" xlink:label="loc_ifrs-full_DisclosureOfMajorCustomersTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis" xlink:label="loc_srt_MajorCustomersAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorCustomersDomain" xlink:label="loc_ifrs-full_MajorCustomersDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerOneMember" xlink:label="loc_hbm_CustomerOneMember_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerTwoMember" xlink:label="loc_hbm_CustomerTwoMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerThreeMember" xlink:label="loc_hbm_CustomerThreeMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerFourMember" xlink:label="loc_hbm_CustomerFourMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerFiveMember" xlink:label="loc_hbm_CustomerFiveMember_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerSixMember" xlink:label="loc_hbm_CustomerSixMember_6"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerSevenMember" xlink:label="loc_hbm_CustomerSevenMember_7"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CustomerEightMember" xlink:label="loc_hbm_CustomerEightMember_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorCustomersDomain" xlink:label="loc_ifrs-full_MajorCustomersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfEntitysRevenue" xlink:label="loc_ifrs-full_PercentageOfEntitysRevenue_13"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfMajorCustomersLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfMajorCustomersTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfMajorCustomersTable_1" xlink:to="loc_srt_MajorCustomersAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_1" xlink:to="loc_ifrs-full_MajorCustomersDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerOneMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerTwoMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerThreeMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerFourMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerFiveMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerSixMember_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerSevenMember_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MajorCustomersDomain_1" xlink:to="loc_hbm_CustomerEightMember_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_1" xlink:to="loc_ifrs-full_MajorCustomersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfMajorCustomersLineItems_0" xlink:to="loc_ifrs-full_PercentageOfEntitysRevenue_13" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasExplanatoryDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BritishColumbiaSegmentMember" xlink:label="loc_hbm_BritishColumbiaSegmentMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ArizonaMember" xlink:label="loc_hbm_ArizonaMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CorporateAndOtherActivitiesMember" xlink:label="loc_hbm_CorporateAndOtherActivitiesMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue" xlink:label="loc_ifrs-full_Revenue_10"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CostOfSalesAbstract" xlink:label="loc_hbm_CostOfSalesAbstract_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingExpense" xlink:label="loc_ifrs-full_OperatingExpense_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationExpense" xlink:label="loc_ifrs-full_DepreciationExpense_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossProfit" xlink:label="loc_ifrs-full_GrossProfit_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:label="loc_ifrs-full_SellingGeneralAndAdministrativeExpense_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources" xlink:label="loc_ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_17"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingExpense_18"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ReevaluationAdjustmentForEnvironmentalProvision" xlink:label="loc_hbm_ReevaluationAdjustmentForEnvironmentalProvision_19"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLoss" xlink:label="loc_ifrs-full_ReversalOfImpairmentLoss_20"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost" xlink:label="loc_ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost_21"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="loc_ifrs-full_ProfitLossFromOperatingActivities_22"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ConsiderationReceivedFromSaleOfNonCoreProject" xlink:label="loc_hbm_ConsiderationReceivedFromSaleOfNonCoreProject_23"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpense" xlink:label="loc_ifrs-full_InterestExpense_24"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_AccretionOnStreamingArrangements" xlink:label="loc_hbm_AccretionOnStreamingArrangements_25"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ChangeInFairValueOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss" xlink:label="loc_hbm_ChangeInFairValueOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss_26"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinanceIncomeCost" xlink:label="loc_ifrs-full_OtherFinanceIncomeCost_27"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="loc_ifrs-full_ProfitLossBeforeTax_28"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_29"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss" xlink:label="loc_ifrs-full_ProfitLoss_30"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_country_PE_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_ManitobaMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_BritishColumbiaSegmentMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_ArizonaMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_CorporateAndOtherActivitiesMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_Revenue_10" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_hbm_CostOfSalesAbstract_11" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_CostOfSalesAbstract_11" xlink:to="loc_ifrs-full_OperatingExpense_11" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_CostOfSalesAbstract_11" xlink:to="loc_ifrs-full_DepreciationExpense_12" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_hbm_CostOfSalesAbstract_11" xlink:to="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_13" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_GrossProfit_15" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_SellingGeneralAndAdministrativeExpense_16" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_17" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_MiscellaneousOtherOperatingExpense_18" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_hbm_ReevaluationAdjustmentForEnvironmentalProvision_19" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_ReversalOfImpairmentLoss_20" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost_21" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_ProfitLossFromOperatingActivities_22" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_hbm_ConsiderationReceivedFromSaleOfNonCoreProject_23" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_InterestExpense_24" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_hbm_AccretionOnStreamingArrangements_25" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_hbm_ChangeInFairValueOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss_26" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_OtherFinanceIncomeCost_27" order="150" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_ProfitLossBeforeTax_28" order="160" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_IncomeTaxExpenseContinuingOperations_29" order="170" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_ProfitLoss_30" order="180" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasAssetsAndLiabilitiesTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BritishColumbiaSegmentMember" xlink:label="loc_hbm_BritishColumbiaSegmentMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ArizonaMember" xlink:label="loc_hbm_ArizonaMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CorporateAndOtherActivitiesMember" xlink:label="loc_hbm_CorporateAndOtherActivitiesMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasAxis" xlink:label="loc_ifrs-full_GeographicalAreasAxis_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain" xlink:label="loc_ifrs-full_GeographicalAreasDomain_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_NV" xlink:label="loc_stpr_NV_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain" xlink:label="loc_ifrs-full_GeographicalAreasDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets" xlink:label="loc_ifrs-full_Assets_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities" xlink:label="loc_ifrs-full_Liabilities_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment_16"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentAssets" xlink:label="loc_ifrs-full_OtherNoncurrentAssets_17"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_country_PE_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_ManitobaMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_BritishColumbiaSegmentMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_ArizonaMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_CorporateAndOtherActivitiesMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" xlink:to="loc_ifrs-full_GeographicalAreasAxis_9" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_GeographicalAreasAxis_9" xlink:to="loc_ifrs-full_GeographicalAreasDomain_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_GeographicalAreasDomain_9" xlink:to="loc_stpr_NV_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_GeographicalAreasAxis_9" xlink:to="loc_ifrs-full_GeographicalAreasDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_Assets_14" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_Liabilities_15" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_PropertyPlantAndEquipment_16" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_OtherNoncurrentAssets_17" order="40" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasAdditionsToPropertyPlantAndEquipmentTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis" xlink:label="loc_ifrs-full_SegmentsAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ManitobaMember" xlink:label="loc_hbm_ManitobaMember_2"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_BritishColumbiaSegmentMember" xlink:label="loc_hbm_BritishColumbiaSegmentMember_3"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_ArizonaMember" xlink:label="loc_hbm_ArizonaMember_4"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CorporateAndOtherActivitiesMember" xlink:label="loc_hbm_CorporateAndOtherActivitiesMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain" xlink:label="loc_ifrs-full_SegmentsDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipment" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipment_10"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" xlink:to="loc_ifrs-full_SegmentsAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_country_PE_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_ManitobaMember_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_BritishColumbiaSegmentMember_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_ArizonaMember_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_SegmentsDomain_1" xlink:to="loc_hbm_CorporateAndOtherActivitiesMember_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_SegmentsAxis_1" xlink:to="loc_ifrs-full_SegmentsDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipment_10" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/DisclosureDisclosureOfGeographicalAreasRevenueByCustomerLocationTableTextBlockDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MarketsOfCustomersAxis" xlink:label="loc_ifrs-full_MarketsOfCustomersAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MarketsOfCustomersDomain" xlink:label="loc_ifrs-full_MarketsOfCustomersDomain_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CN" xlink:label="loc_country_CN_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA" xlink:label="loc_country_CA_2"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_JP" xlink:label="loc_country_JP_3"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IN" xlink:label="loc_country_IN_4"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_DE" xlink:label="loc_country_DE_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PE" xlink:label="loc_country_PE_6"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_KR" xlink:label="loc_country_KR_7"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US" xlink:label="loc_country_US_8"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CL" xlink:label="loc_country_CL_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_PH" xlink:label="loc_country_PH_10"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_NL" xlink:label="loc_country_NL_11"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CH" xlink:label="loc_country_CH_12"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_BE" xlink:label="loc_country_BE_13"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_HK" xlink:label="loc_country_HK_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_SG" xlink:label="loc_country_SG_15"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MarketsOfCustomersDomain" xlink:label="loc_ifrs-full_MarketsOfCustomersDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue" xlink:label="loc_ifrs-full_Revenue_20"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable_1" xlink:to="loc_ifrs-full_MarketsOfCustomersAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_MarketsOfCustomersAxis_1" xlink:to="loc_ifrs-full_MarketsOfCustomersDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_CN_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_CA_2" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_JP_3" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_IN_4" order="30" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_DE_5" order="40" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_PE_6" order="50" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_KR_7" order="60" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_US_8" order="70" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_CL_9" order="80" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_PH_10" order="90" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_NL_11" order="100" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_CH_12" order="110" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_BE_13" order="120" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_HK_14" order="130" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_MarketsOfCustomersDomain_1" xlink:to="loc_country_SG_15" order="140" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_MarketsOfCustomersAxis_1" xlink:to="loc_ifrs-full_MarketsOfCustomersDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems_0" xlink:to="loc_ifrs-full_Revenue_20" order="10" use="optional"/>
  </definitionLink>
  <definitionLink xlink:type="extended" xlink:role="http://www.hudbayminerals.com/role/EventsAfterTheReportingPeriodNarrativeDetails">
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_0"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_1"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_EventsAfterReportingPeriodMember" xlink:label="loc_hbm_EventsAfterReportingPeriodMember_1"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_CopperWorldIncMember" xlink:label="loc_hbm_CopperWorldIncMember_5"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis" xlink:label="loc_ifrs-full_CounterpartiesAxis_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_9"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_MitsubishiMaterialsCorporationMember" xlink:label="loc_hbm_MitsubishiMaterialsCorporationMember_9"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain" xlink:label="loc_ifrs-full_CounterpartiesDomain_Default"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_14"/>
    <loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries" xlink:label="loc_ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries_15"/>
    <loc xlink:type="locator" xlink:href="hbm-20251231.xsd#hbm_FutureProceedsFromChangesInOwnershipInterestsInSubsidiaries" xlink:label="loc_hbm_FutureProceedsFromChangesInOwnershipInterestsInSubsidiaries_16"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_0" xlink:to="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_1" order="0" use="optional" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_1" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_1" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_1" xlink:to="loc_hbm_EventsAfterReportingPeriodMember_1" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_1" xlink:to="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_1" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_5" xlink:to="loc_hbm_CopperWorldIncMember_5" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis_5" xlink:to="loc_ifrs-full_CategoriesOfRelatedPartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_1" xlink:to="loc_ifrs-full_CounterpartiesAxis_9" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ifrs-full_CounterpartiesAxis_9" xlink:to="loc_ifrs-full_CounterpartiesDomain_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_CounterpartiesDomain_9" xlink:to="loc_hbm_MitsubishiMaterialsCorporationMember_9" order="0" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ifrs-full_CounterpartiesAxis_9" xlink:to="loc_ifrs-full_CounterpartiesDomain_Default" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_0" xlink:to="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_14" order="10" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_0" xlink:to="loc_ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries_15" order="20" use="optional"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_0" xlink:to="loc_hbm_FutureProceedsFromChangesInOwnershipInterestsInSubsidiaries_16" order="30" use="optional"/>
  </definitionLink>
</linkbase>
