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  <xsd:element name="TaxEffectFromNonRecognitionOfDeferredTaxAssets" id="glpg_TaxEffectFromNonRecognitionOfDeferredTaxAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DifferenceInTaxExpenseIncomeBetweenStatutoryAndEffectiveTaxRate" id="glpg_DifferenceInTaxExpenseIncomeBetweenStatutoryAndEffectiveTaxRate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AmountOfDifferencesInTaxExpenseIncomeBetweenStatutoryAndEffectiveRateExplained" id="glpg_AmountOfDifferencesInTaxExpenseIncomeBetweenStatutoryAndEffectiveRateExplained" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfDetailedInformationAboutOtherNoncurrentAssetsTableTextBlock" id="glpg_DisclosureOfDetailedInformationAboutOtherNoncurrentAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsPerPlanTableTextBlock" id="glpg_DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsPerPlanTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" id="glpg_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsVestingAxis" id="glpg_IfrsVestingAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsVestingDomain" id="glpg_IfrsVestingDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsShareBasedCompensationAwardTrancheOneMember" id="glpg_IfrsShareBasedCompensationAwardTrancheOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsShareBasedCompensationAwardTrancheTwoMember" id="glpg_IfrsShareBasedCompensationAwardTrancheTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsShareBasedCompensationAwardTrancheThreeMember" id="glpg_IfrsShareBasedCompensationAwardTrancheThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ExercisePriceOtherEquityInstrumentsGranted" id="glpg_ExercisePriceOtherEquityInstrumentsGranted" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageRemainingContractualLifeOutstandingOfOtherEquityInstruments" id="glpg_WeightedAverageRemainingContractualLifeOutstandingOfOtherEquityInstruments" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfReconciliationOfShareCapitalTableTextBlock" id="glpg_DisclosureOfReconciliationOfShareCapitalTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfSummaryOfCapitalIncreasesTableTextBlock" id="glpg_DisclosureOfSummaryOfCapitalIncreasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AggregateShareCapitalAfterTransaction" id="glpg_AggregateShareCapitalAfterTransaction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="OrdinarySharesNoClassMember" id="glpg_OrdinarySharesNoClassMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AuthorizationTermOfBoardOfDirectors" id="glpg_AuthorizationTermOfBoardOfDirectors" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AuthorizedCapitalApprovedByShareholderS" id="glpg_AuthorizedCapitalApprovedByShareholderS" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="DisclosureOfNumberOfOtherEquityInstrumentsByCategory" id="glpg_DisclosureOfNumberOfOtherEquityInstrumentsByCategory" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosGmbhMember" id="glpg_GalapagosGmbhMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PurchaseCommitments" id="glpg_PurchaseCommitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="GalapagosInc.Member" id="glpg_GalapagosInc.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiotechLtd.Member" id="glpg_GalapagosBiotechLtd.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredIncomeAbstract" id="glpg_DeferredIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsScenarioAxis" id="glpg_IfrsScenarioAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsScenarioUnspecifiedDomain" id="glpg_IfrsScenarioUnspecifiedDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfDeferredIncomeTable" id="glpg_DisclosureOfDeferredIncomeTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfDeferredIncomeLineItems" id="glpg_DisclosureOfDeferredIncomeLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AccumulatedCostOfCapital" id="glpg_AccumulatedCostOfCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ResearchAndDevelopmentTable" id="glpg_ResearchAndDevelopmentTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ResearchAndDevelopmentDomain" id="glpg_ResearchAndDevelopmentDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherResearchAndDevelopmentProgramMember" id="glpg_OtherResearchAndDevelopmentProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MiscellaneousOtherFinanceExpense" id="glpg_MiscellaneousOtherFinanceExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="MiscellaneousOtherFinanceIncome" id="glpg_MiscellaneousOtherFinanceIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IfrsTypeOfArrangementDomain" id="glpg_IfrsTypeOfArrangementDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RecognitionOfNonRefundableUpfrontPaymentsAndLicenseFeesMember" id="glpg_RecognitionOfNonRefundableUpfrontPaymentsAndLicenseFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassificationOfBonusAxis" id="glpg_ClassificationOfBonusAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ClassificationOfBonusDomain" id="glpg_ClassificationOfBonusDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareCapitalAndSharePremiumMember" id="glpg_ShareCapitalAndSharePremiumMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherEquityInstrumentsVestingPeriod" id="glpg_OtherEquityInstrumentsVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ShareCapitalAndSharePremium" id="glpg_ShareCapitalAndSharePremium" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ResearchAndDevelopmentLineItems" id="glpg_ResearchAndDevelopmentLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInWorkingCapitalExcludingDeferredIncome" id="glpg_IncreaseDecreaseInWorkingCapitalExcludingDeferredIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentForNonCashTransactions" id="glpg_AdjustmentForNonCashTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentForItemsToDiscloseSeparatelyUnderOperatingCashFlow" id="glpg_AdjustmentForItemsToDiscloseSeparatelyUnderOperatingCashFlow" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="OtherMiscellaneousNonCurrentAssets" id="glpg_OtherMiscellaneousNonCurrentAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="TradeAndOtherReceivablesMember" id="glpg_TradeAndOtherReceivablesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NewStandardsAndInterpretationsApplicableForAnnualPeriodPolicyTextBlock" id="glpg_NewStandardsAndInterpretationsApplicableForAnnualPeriodPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EffectOfShareBasedPaymentExpensesWithoutTaxImpact" id="glpg_EffectOfShareBasedPaymentExpensesWithoutTaxImpact" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IfrsTitleOfIndividualAxis" id="glpg_IfrsTitleOfIndividualAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="IfrsTitleOfIndividualWithRelationshipToEntityDomain" id="glpg_IfrsTitleOfIndividualWithRelationshipToEntityDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="MembersOfExecutiveCommitteeMember" id="glpg_MembersOfExecutiveCommitteeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsRelatedToOperatingCashFlowTableTextBlock" id="glpg_AdjustmentsRelatedToOperatingCashFlowTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GileadCollaborationAgreementForDrugDiscoveryPlatformMember" id="glpg_GileadCollaborationAgreementForDrugDiscoveryPlatformMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForFairValueRemeasurementOfShareSubscriptionAgreementAndWarrants" id="glpg_AdjustmentsForFairValueRemeasurementOfShareSubscriptionAgreementAndWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CollaborationAgreementConsiderationAsShareSubscription" id="glpg_CollaborationAgreementConsiderationAsShareSubscription" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CollaborationAgreementForDrugDiscoveryPlatformMember" id="glpg_CollaborationAgreementForDrugDiscoveryPlatformMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CollaborationAgreementEstimatedSignificantFinancingComponentValue" id="glpg_CollaborationAgreementEstimatedSignificantFinancingComponentValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="GalapagosBiopharmaS.l.uMember" id="glpg_GalapagosBiopharmaS.l.uMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaS.r.lMember" id="glpg_GalapagosBiopharmaS.r.lMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaB.v.Member" id="glpg_GalapagosBiopharmaB.v.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosRealEstateB.v.Member" id="glpg_GalapagosRealEstateB.v.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LiquidityRiskAbstract" id="glpg_LiquidityRiskAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LesseeLeaseLiabilitiesTableTextBlock" id="glpg_LesseeLeaseLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="EffectOfDiscountingLongTermDeferredIncome" id="glpg_EffectOfDiscountingLongTermDeferredIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="FutureFinanceChargeOnLeaseLiabilities" id="glpg_FutureFinanceChargeOnLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DisclosureOfGeneralInformationAboutFinancialStatementAbstract" id="glpg_DisclosureOfGeneralInformationAboutFinancialStatementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosNvBelgiumMember" id="glpg_GalapagosNvBelgiumMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForUnrealizedForeignExchangeLossesGains" id="glpg_AdjustmentsForUnrealizedForeignExchangeLossesGains" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="InnovationIncomeDeductionAndInvestmentDeductionMember" id="glpg_InnovationIncomeDeductionAndInvestmentDeductionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubsequentWarrantBIssuanceLiabilityMember" id="glpg_SubsequentWarrantBIssuanceLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NetFairValueAdjustmentRelatingToCurrentFinancialInvestments" id="glpg_NetFairValueAdjustmentRelatingToCurrentFinancialInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CostShareForGlobalDevelopmentActivities" id="glpg_CostShareForGlobalDevelopmentActivities" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="IfrsRestrictedStockUnitsRsusMember" id="glpg_IfrsRestrictedStockUnitsRsusMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CurrentFinancialInvestmentsMember" id="glpg_CurrentFinancialInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="CurrentFinancialInstrumentsLiabilitiesMember" id="glpg_CurrentFinancialInstrumentsLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfSignificantTransactionAbstract" id="glpg_SummaryOfSignificantTransactionAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfSignificantTransactionTextBlock" id="glpg_SummaryOfSignificantTransactionTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfSignificantTransactionTable" id="glpg_SummaryOfSignificantTransactionTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfSignificantTransactionLineItems" id="glpg_SummaryOfSignificantTransactionLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FilgotinibDrugLicenseMember" id="glpg_FilgotinibDrugLicenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UpfrontPaymentReceived" id="glpg_UpfrontPaymentReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NumberOfDirectorsRepresentedAsBoardOfDirectors" id="glpg_NumberOfDirectorsRepresentedAsBoardOfDirectors" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ProgramsOptionRightSharingPeriod" id="glpg_ProgramsOptionRightSharingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OptInPaymentsToBeReceivedForEachProgramCollaborationOpted" id="glpg_OptInPaymentsToBeReceivedForEachProgramCollaborationOpted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="TieredRoyaltiesPercentageOnNetSales" id="glpg_TieredRoyaltiesPercentageOnNetSales" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageSharePriceCalculatedPeriod" id="glpg_WeightedAverageSharePriceCalculatedPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FairValueGainOnCurrentFinancialInvestments" id="glpg_FairValueGainOnCurrentFinancialInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="TaxEffectOfDerecognitionOfPreviouslyRecognizedDeferredTaxAssets" id="glpg_TaxEffectOfDerecognitionOfPreviouslyRecognizedDeferredTaxAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="TaxEffectOfUseOfInnovationIncomeDeduction" id="glpg_TaxEffectOfUseOfInnovationIncomeDeduction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CurrentFinancialInvestmentsAbstract" id="glpg_CurrentFinancialInvestmentsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RemainingBalanceOfGeneralPartOfAuthorizedCapitalAvailable" id="glpg_RemainingBalanceOfGeneralPartOfAuthorizedCapitalAvailable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ResearchAndDevelopmentIncentiveIncome" id="glpg_ResearchAndDevelopmentIncentiveIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfShareCapitalIncreaseRenewed" id="glpg_PercentageOfShareCapitalIncreaseRenewed" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GeneralAuthorizationOfShareCapitalMember" id="glpg_GeneralAuthorizationOfShareCapitalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SpecificAuthorizationOfShareCapitalMember" id="glpg_SpecificAuthorizationOfShareCapitalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfMovementInNonCurrentAndCurrentDeferredIncomeTableTextBlock" id="glpg_DisclosureOfMovementInNonCurrentAndCurrentDeferredIncomeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WarrantIssuanceLiabilityMember" id="glpg_WarrantIssuanceLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InitialWarrantBIssuanceLiabilityMember" id="glpg_InitialWarrantBIssuanceLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredIncomeAxis" id="glpg_DeferredIncomeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DeferredIncomeDomain" id="glpg_DeferredIncomeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherDeferredIncomeMember" id="glpg_OtherDeferredIncomeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="UpfrontOrLicenseFeesRevenueRecognised" id="glpg_UpfrontOrLicenseFeesRevenueRecognised" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DeferredIncomeSignificantFinancingComponent" id="glpg_DeferredIncomeSignificantFinancingComponent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInOtherDeferredIncome" id="glpg_IncreaseDecreaseInOtherDeferredIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MilestonePaymentsRevenueRecognized" id="glpg_MilestonePaymentsRevenueRecognized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="KeyManagementPersonnelCompensationBoardFeesAndOtherShortTermBenefitsForDirectors" id="glpg_KeyManagementPersonnelCompensationBoardFeesAndOtherShortTermBenefitsForDirectors" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NumberOfPerformanceObligations" id="glpg_NumberOfPerformanceObligations" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherFeesRelatedToNonAuditServicesExecutedByPersonsRelatedToStatutoryAuditor." id="glpg_OtherFeesRelatedToNonAuditServicesExecutedByPersonsRelatedToStatutoryAuditor." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaGmbhMember" id="glpg_GalapagosBiopharmaGmbhMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosRealEstateOneBvMember" id="glpg_GalapagosRealEstateOneBvMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InitialWarrantTerm" id="glpg_InitialWarrantTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ArithmeticMean30DayDailyVolumeWeightedAverageTradingPriceOfEntityMultiplierExercisePricePerShare" id="glpg_ArithmeticMean30DayDailyVolumeWeightedAverageTradingPriceOfEntityMultiplierExercisePricePerShare" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LandAndBuildingImprovementsMember" id="glpg_LandAndBuildingImprovementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SummaryOfRevenuesByCollaborationAndByCategoryOfRevenueTableTextBlock" id="glpg_SummaryOfRevenuesByCollaborationAndByCategoryOfRevenueTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FairValueRemeasurementOfWarrants" id="glpg_FairValueRemeasurementOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SubscriptionRightsMember" id="glpg_SubscriptionRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OtherComprehensiveIncomeNetOfTaxTranslationDifferencesUponLiquidationOfForeignOperations" id="glpg_OtherComprehensiveIncomeNetOfTaxTranslationDifferencesUponLiquidationOfForeignOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="ProfitLossBeforeTaxDiscontinuedOperations" id="glpg_ProfitLossBeforeTaxDiscontinuedOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="CashAndCashEquivalentsIncludingDiscontinuedOperations" id="glpg_CashAndCashEquivalentsIncludingDiscontinuedOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="UpfrontPaymentsReceivable" id="glpg_UpfrontPaymentsReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="GroupBActivitiesMember" id="glpg_GroupBActivitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfFutureNetSalesFrom2024" id="glpg_PercentageOfFutureNetSalesFrom2024" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="OtherNonCurrentAssetMember" id="glpg_OtherNonCurrentAssetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FilgotinibPerformanceObligationMember" id="glpg_FilgotinibPerformanceObligationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GileadCollaborationAgreementForZiritaxestatMember" id="glpg_GileadCollaborationAgreementForZiritaxestatMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WarrantsIssuanceLiabilities" id="glpg_WarrantsIssuanceLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DividendReceivedDeductionCarriedForwardToBeOffsetAgainstFutureIncomeMember" id="glpg_DividendReceivedDeductionCarriedForwardToBeOffsetAgainstFutureIncomeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DueToInnovationIncomeDeductionMember" id="glpg_DueToInnovationIncomeDeductionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoriesAbstract" id="glpg_InventoriesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="InventoriesTableTextBlock" id="glpg_InventoriesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfDisclosureOfConsiderationReceivedFromDisposalOfSubsidiary" id="glpg_ScheduleOfDisclosureOfConsiderationReceivedFromDisposalOfSubsidiary" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfNetCashFlowOnDisposalOfSubsidiariesTableTextBlock" id="glpg_ScheduleOfNetCashFlowOnDisposalOfSubsidiariesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaA.b.Member" id="glpg_GalapagosBiopharmaA.b.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaA.s.Member" id="glpg_GalapagosBiopharmaA.s.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaOyMember" id="glpg_GalapagosBiopharmaOyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaApsMember" id="glpg_GalapagosBiopharmaApsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="GalapagosBiopharmaLimitedMember" id="glpg_GalapagosBiopharmaLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfAssetsAndLiabilitiesOverWhichControlWasLostTableTextBlock" id="glpg_DisclosureOfAssetsAndLiabilitiesOverWhichControlWasLostTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RevenueFromCollaboration" id="glpg_RevenueFromCollaboration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="SupervisoryBoardMembersMember" id="glpg_SupervisoryBoardMembersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfOtherEquityInstrumentsVested" id="glpg_PercentageOfOtherEquityInstrumentsVested" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2016BAllocatedOnJanuary2017Member" id="glpg_SubscriptionRightPlan2016BAllocatedOnJanuary2017Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2017AllocatedOnMay2017Member" id="glpg_SubscriptionRightPlan2017AllocatedOnMay2017Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2017RmvAllocatedOnMay2017Member" id="glpg_SubscriptionRightPlan2017RmvAllocatedOnMay2017Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2018AllocatedOnApril2018Member" id="glpg_SubscriptionRightPlan2018AllocatedOnApril2018Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2018RmvAllocatedOnApril2018Member" id="glpg_SubscriptionRightPlan2018RmvAllocatedOnApril2018Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2019AllocatedOnApril2019Member" id="glpg_SubscriptionRightPlan2019AllocatedOnApril2019Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2019RmvAllocatedOnApril2019Member" id="glpg_SubscriptionRightPlan2019RmvAllocatedOnApril2019Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2020AllocatedOnApril2020Member" id="glpg_SubscriptionRightPlan2020AllocatedOnApril2020Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2020RmvAllocatedOnApril2020Member" id="glpg_SubscriptionRightPlan2020RmvAllocatedOnApril2020Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageSharePriceAtAcceptanceDate" id="glpg_WeightedAverageSharePriceAtAcceptanceDate" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageFairValueAtAcceptanceDate" id="glpg_WeightedAverageFairValueAtAcceptanceDate" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageEstimatedVolatilityRate" id="glpg_WeightedAverageEstimatedVolatilityRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageExpectedLifeOfSubscriptionRights" id="glpg_WeightedAverageExpectedLifeOfSubscriptionRights" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WeightedAverageRiskFreeRate" id="glpg_WeightedAverageRiskFreeRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfOtherEquityInstrumentsPaidInCashInSharebasedPaymentArrangement" id="glpg_NumberOfOtherEquityInstrumentsPaidInCashInSharebasedPaymentArrangement" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="ManagementBoardMembersMember" id="glpg_ManagementBoardMembersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VestingPercentageAxis" id="glpg_VestingPercentageAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="VestingPercentageDomain" id="glpg_VestingPercentageDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfSecuritiesCalledByEachRestrictedStockOrRight" id="glpg_NumberOfSecuritiesCalledByEachRestrictedStockOrRight" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfCalendarDaysPeriodPrecedingVestingDateForCalculateValueOfWeightedAveragePriceOfEntityShareTradedOnStockExchange" id="glpg_NumberOfCalendarDaysPeriodPrecedingVestingDateForCalculateValueOfWeightedAveragePriceOfEntityShareTradedOnStockExchange" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfCalendarDaysPeriodPrecedingReportingPeriodForCalculateValueOfWeightedAveragePriceOfEntityShareTradedOnStockExchange" id="glpg_NumberOfCalendarDaysPeriodPrecedingReportingPeriodForCalculateValueOfWeightedAveragePriceOfEntityShareTradedOnStockExchange" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="PercentageOfOwnershipInterest" id="glpg_PercentageOfOwnershipInterest" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="GileadRoyaltiesOnJyselecaMember" id="glpg_GileadRoyaltiesOnJyselecaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2021BeAllocatedOnApril2021Member" id="glpg_SubscriptionRightPlan2021BeAllocatedOnApril2021Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2021RmvAllocatedOnApril2021Member" id="glpg_SubscriptionRightPlan2021RmvAllocatedOnApril2021Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SubscriptionRightPlan2021RowAllocatedOnApril2021Member" id="glpg_SubscriptionRightPlan2021RowAllocatedOnApril2021Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RestrictedStockUnitPlan2021IMember" id="glpg_RestrictedStockUnitPlan2021IMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="RestrictedStockUnitPlan2021IiMember" id="glpg_RestrictedStockUnitPlan2021IiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfNonCurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContractsTableTextBlock" id="glpg_DisclosureOfNonCurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContractsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="OriginalAgreementScenarioMember" id="glpg_OriginalAgreementScenarioMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FirstRevisedAgreementMember" id="glpg_FirstRevisedAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="SecondRevisedAgreementMember" id="glpg_SecondRevisedAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfCollaborationRevenuesBasedInGeographicalAreaTextBlock" id="glpg_DisclosureOfCollaborationRevenuesBasedInGeographicalAreaTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseThroughExerciseOfWarrantsEquityIncludingAdjustments" id="glpg_IncreaseDecreaseThroughExerciseOfWarrantsEquityIncludingAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AssetClassAxis" id="glpg_AssetClassAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="AssetClassDomain" id="glpg_AssetClassDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LeaseholdMember" id="glpg_LeaseholdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CollaborationRevenuesMember" id="glpg_CollaborationRevenuesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Tyk2ProgramOnGlpg3667Member" id="glpg_Tyk2ProgramOnGlpg3667Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PersonnelMember" id="glpg_PersonnelMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SikiProgramMember" id="glpg_SikiProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FairValueAdjustmentsAndNetCurrencyExchange" id="glpg_FairValueAdjustmentsAndNetCurrencyExchange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EffectOfDiscountingOtherNonCurrentLiabilities" id="glpg_EffectOfDiscountingOtherNonCurrentLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GoodwillAbstract" id="glpg_GoodwillAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfCurrentFinancialInvestmentsTableTextBlock" id="glpg_DisclosureOfCurrentFinancialInvestmentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AboundbioInc.Member" id="glpg_AboundbioInc.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2022BAllocatedOnJanuary2022Member" id="glpg_SubscriptionRightPlan2022BAllocatedOnJanuary2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2022BeAllocatedOnJune2022Member" id="glpg_SubscriptionRightPlan2022BeAllocatedOnJune2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2022RowAllocatedOnJune2022Member" id="glpg_SubscriptionRightPlan2022RowAllocatedOnJune2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2022AllocatedOnJune2022Member" id="glpg_SubscriptionRightPlan2022AllocatedOnJune2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2022IMember" id="glpg_RestrictedStockUnitPlan2022IMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2022IiMember" id="glpg_RestrictedStockUnitPlan2022IiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CellPointAcquisitionMember" id="glpg_CellPointAcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AboundbioAcquisitionMember" id="glpg_AboundbioAcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CashUsedForOtherLiabilitiesRelatedToAcquisitionOfSubsidiariesClassifiedAsOperatingActivities" id="glpg_CashUsedForOtherLiabilitiesRelatedToAcquisitionOfSubsidiariesClassifiedAsOperatingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SubscriptionRightPlan2022RmvAllocatedOnJune2022Member" id="glpg_SubscriptionRightPlan2022RmvAllocatedOnJune2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContingentConsiderationPayableOnAchievementOfCertainDevelopmentMilestones" id="glpg_ContingentConsiderationPayableOnAchievementOfCertainDevelopmentMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContingentConsiderationPayableOnAchievementOfRegulatoryMilestones" id="glpg_ContingentConsiderationPayableOnAchievementOfRegulatoryMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContingentConsiderationPayableOnAchievementOfSalesBasedMilestones" id="glpg_ContingentConsiderationPayableOnAchievementOfSalesBasedMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SubscriptionRightPlana2022AllocatedOnJanuary2022Member" id="glpg_SubscriptionRightPlana2022AllocatedOnJanuary2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonCurrentContingentConsiderationRelatedToMilestonesCellpointMember" id="glpg_NonCurrentContingentConsiderationRelatedToMilestonesCellpointMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsBusinessCombinationContingentConsiderationLiabilityNoncurrent" id="glpg_IfrsBusinessCombinationContingentConsiderationLiabilityNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CarTProgramsInOncologyMember" id="glpg_CarTProgramsInOncologyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2022BeAllocatedOnAugust2022Member" id="glpg_SubscriptionRightPlan2022BeAllocatedOnAugust2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdditionalContingentConsiderationRecognisedAsOfAcquisitionDate" id="glpg_AdditionalContingentConsiderationRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TradeAndOtherLiabilitiesAndOtherNonCurrentLiabilitiesAbstract" id="glpg_TradeAndOtherLiabilitiesAndOtherNonCurrentLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MilestonesAchievedAmountOutstanding" id="glpg_MilestonesAchievedAmountOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RoyaltiesAmountOutstanding" id="glpg_RoyaltiesAmountOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RetirementBenefitLiabilitiesMember" id="glpg_RetirementBenefitLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfOtherEquityInstrumentsOutstandingTextBlock" id="glpg_DisclosureOfOtherEquityInstrumentsOutstandingTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfMovementsInDeferredTaxAssetsAndDeferredTaxLiabilities" id="glpg_DisclosureOfMovementsInDeferredTaxAssetsAndDeferredTaxLiabilities" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NoncurrentPortionOfUpfrontPaymentToCounterpartyInCollaborativeArrangement" id="glpg_NoncurrentPortionOfUpfrontPaymentToCounterpartyInCollaborativeArrangement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NoncurrentPortionOfAdvanceMadeToCounterpartyInCollaborativeArrangement" id="glpg_NoncurrentPortionOfAdvanceMadeToCounterpartyInCollaborativeArrangement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfPositionsAgreedToTransfer" id="glpg_NumberOfPositionsAgreedToTransfer" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfEuropeanCountriesInWhichPositionsHasBeenAgreedToTransfer" id="glpg_NumberOfEuropeanCountriesInWhichPositionsHasBeenAgreedToTransfer" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="JyselecaBusinessClassifiedAsHeldForSaleMember" id="glpg_JyselecaBusinessClassifiedAsHeldForSaleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredTaxAssetsMember" id="glpg_DeferredTaxAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredTaxLiabilitiesMember" id="glpg_DeferredTaxLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherRoyaltiesAgreementMember" id="glpg_OtherRoyaltiesAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsCollaborativeArrangementAndArrangementsOtherThanCollaborativeAxis" id="glpg_IfrsCollaborativeArrangementAndArrangementsOtherThanCollaborativeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsCollaborativeArrangementAndArrangementsOtherThanCollaborativeDomain" id="glpg_IfrsCollaborativeArrangementAndArrangementsOtherThanCollaborativeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2023BeAllocatedOnMay2023Member" id="glpg_SubscriptionRightPlan2023BeAllocatedOnMay2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2023RmvAllocatedOnMay2023Member" id="glpg_SubscriptionRightPlan2023RmvAllocatedOnMay2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2023RowAllocatedOnMay2023Member" id="glpg_SubscriptionRightPlan2023RowAllocatedOnMay2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2023BeAllocatedOnJune2023Member" id="glpg_SubscriptionRightPlan2023BeAllocatedOnJune2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2023RowAllocatedOnNovember2023Member" id="glpg_SubscriptionRightPlan2023RowAllocatedOnNovember2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2023IMember" id="glpg_RestrictedStockUnitPlan2023IMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2023IiMember" id="glpg_RestrictedStockUnitPlan2023IiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CrossChargesFromAndGileadRelatingToFilgotinib" id="glpg_CrossChargesFromAndGileadRelatingToFilgotinib" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ScheduleOfSubscriptionRightsTableTextBlock" id="glpg_ScheduleOfSubscriptionRightsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NetUnrealizedCurrencyExchangeGainOtherFinancialIncome" id="glpg_NetUnrealizedCurrencyExchangeGainOtherFinancialIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NetRealizedCurrencyExchangeGainOtherFinancialIncome" id="glpg_NetRealizedCurrencyExchangeGainOtherFinancialIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OperatingCostsAndOtherOperatingIncomeAbstract" id="glpg_OperatingCostsAndOtherOperatingIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AverageNumberOfFteSOfContinuingOperations." id="glpg_AverageNumberOfFteSOfContinuingOperations." type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfEmployeesOfOurContinuingOperations." id="glpg_NumberOfEmployeesOfOurContinuingOperations." type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfAnalysisOfStaffCostForContinuedOperationsTable" id="glpg_DisclosureOfAnalysisOfStaffCostForContinuedOperationsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContinuingOperationsAxis" id="glpg_ContinuingOperationsAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContinuedOperationsDomain" id="glpg_ContinuedOperationsDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ResearchAndDevelopmentMember" id="glpg_ResearchAndDevelopmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommercialAndMedicalAffairsMember" id="glpg_CommercialAndMedicalAffairsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CorporateAndSupportMember" id="glpg_CorporateAndSupportMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CashAndCashEquivalentsAndCurrentFinancialInvestmentsMember" id="glpg_CashAndCashEquivalentsAndCurrentFinancialInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AtAmortizedCostMember" id="glpg_AtAmortizedCostMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EffectOfDiscountingOfOtherNoncurrentLiabilities" id="glpg_EffectOfDiscountingOfOtherNoncurrentLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="UnrecognizedDeferredTaxAssets" id="glpg_UnrecognizedDeferredTaxAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PurchaseCommitmentsRelatedToProjectsInDevelopmentPhase" id="glpg_PurchaseCommitmentsRelatedToProjectsInDevelopmentPhase" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PurchaseCommitmentRelatedToSharedServices" id="glpg_PurchaseCommitmentRelatedToSharedServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PurchaseCommitmentRelatedToJyselecaProductSupplyChain" id="glpg_PurchaseCommitmentRelatedToJyselecaProductSupplyChain" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PurchaseCommitmentRelatedToCommercialAndMedicalAffairs" id="glpg_PurchaseCommitmentRelatedToCommercialAndMedicalAffairs" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PurchaseCommitmentRelatedToProjectInDiscoveryResearchPhase" id="glpg_PurchaseCommitmentRelatedToProjectInDiscoveryResearchPhase" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfReductionInPositions" id="glpg_NumberOfReductionInPositions" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AmendmentsRelatingToDiversityStudyMember" id="glpg_AmendmentsRelatingToDiversityStudyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfRDIncentivesIncome" id="glpg_DisclosureOfRDIncentivesIncome" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TotalRDIncentiveIncome" id="glpg_TotalRDIncentiveIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncomeFromInnovationIncentiveSystemInFrance" id="glpg_IncomeFromInnovationIncentiveSystemInFrance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncomeFromBelgianRDIncentives." id="glpg_IncomeFromBelgianRDIncentives." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TaxRebatesOnPayrollWithholdingTaxesOfRDPersonnel" id="glpg_TaxRebatesOnPayrollWithholdingTaxesOfRDPersonnel" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RevenueFromCollaborationDiscontinuedOperations" id="glpg_RevenueFromCollaborationDiscontinuedOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TotalContinuedAndDiscontinuedRevenueFromCollaboration" id="glpg_TotalContinuedAndDiscontinuedRevenueFromCollaboration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DisclosureOfOtherOperatingCostsAndOtherOperatingIncomesTable" id="glpg_DisclosureOfOtherOperatingCostsAndOtherOperatingIncomesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NationalInstituteForHealthMember" id="glpg_NationalInstituteForHealthMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExpensefromsharebasedpaymenttransactionsinwHichgoodsorservicesreceiveddidnotqualifyforrecognitionasassetscontinuedoperations" id="glpg_ExpensefromsharebasedpaymenttransactionsinwHichgoodsorservicesreceiveddidnotqualifyforrecognitionasassetscontinuedoperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfChangesInTransactionPrice" id="glpg_ScheduleOfChangesInTransactionPrice" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GileadCollaborationAgreementMember" id="glpg_GileadCollaborationAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TotalAmountsReceivedFromGileadInPreviousYears" id="glpg_TotalAmountsReceivedFromGileadInPreviousYears" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PersonnelCostsMember" id="glpg_PersonnelCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubcontractingMember" id="glpg_SubcontractingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisposablesAndLabFeesAndPremiseCostsMember" id="glpg_DisposablesAndLabFeesAndPremiseCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProfessionalFeesMember" id="glpg_ProfessionalFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherOperatingExpensesMember" id="glpg_OtherOperatingExpensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExternalOutsourcingCostsMember" id="glpg_ExternalOutsourcingCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MoneyMarketFunds.Member" id="glpg_MoneyMarketFunds.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TreasuryBillsMember" id="glpg_TreasuryBillsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TermDepsitsMember" id="glpg_TermDepsitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MaturityPeriodForTermDeposit" id="glpg_MaturityPeriodForTermDeposit" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AdjustmentForInvestmentIncomeRelatedToCurrentFinancialInvestments" id="glpg_AdjustmentForInvestmentIncomeRelatedToCurrentFinancialInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PropertyPlantAndEquipmentIncludingRightOfUseAssetAsOfDisposalDate" id="glpg_PropertyPlantAndEquipmentIncludingRightOfUseAssetAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherNonCurrentAssetsAsOfDisposalDate" id="glpg_OtherNonCurrentAssetsAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TradeAndOtherCurrentReceivablesAsOfDisposalDate" id="glpg_TradeAndOtherCurrentReceivablesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CashAndCashEquivalentsAsOfDisposalDate" id="glpg_CashAndCashEquivalentsAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherCurrentAssetsAsOfDisposalDate" id="glpg_OtherCurrentAssetsAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AssetsAsOfDisposalDate" id="glpg_AssetsAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NonCurrentLeaseLiabilitiesAsOfDisposalDate" id="glpg_NonCurrentLeaseLiabilitiesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherNonCurrentLiabilitiesAsOfDisposalDate" id="glpg_OtherNonCurrentLiabilitiesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TradeAndOtherCurrentLiabilitiesAsOfDisposalDate" id="glpg_TradeAndOtherCurrentLiabilitiesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CurrentLeaseLiabilitiesAsOfDisposalDate" id="glpg_CurrentLeaseLiabilitiesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncomeTaxPayableAsOfDisposalDate" id="glpg_IncomeTaxPayableAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TotalLiabilitiesAsOfDisposalDate" id="glpg_TotalLiabilitiesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NetAssetsAsOfDisposalDate" id="glpg_NetAssetsAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ConsolidatedTaxLossesCarriedForwardAndDeductibleTemporaryDifferencesMember" id="glpg_ConsolidatedTaxLossesCarriedForwardAndDeductibleTemporaryDifferencesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubsidiaryCompaniesOperatingOnCostPlusBasisForWhomDeferredTaxAssetIsRecognizedMember" id="glpg_SubsidiaryCompaniesOperatingOnCostPlusBasisForWhomDeferredTaxAssetIsRecognizedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonCurrentContingentConsiderationReceivable" id="glpg_NonCurrentContingentConsiderationReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EscrowAccount" id="glpg_EscrowAccount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RevenueFromSupply" id="glpg_RevenueFromSupply" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DisclosureOfEquityInvestmentsTextBlock" id="glpg_DisclosureOfEquityInvestmentsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfDetailedInformationAboutEquityInstruments." id="glpg_DisclosureOfDetailedInformationAboutEquityInstruments." type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CurrentContingentConsiderationReceivable" id="glpg_CurrentContingentConsiderationReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MiscellaneousOtherNonCurrentLiabilities" id="glpg_MiscellaneousOtherNonCurrentLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="GalapagosUkLimitedMember" id="glpg_GalapagosUkLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GalapagosHoldingPteLtdMember" id="glpg_GalapagosHoldingPteLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContingentConsiderationReceivableMember" id="glpg_ContingentConsiderationReceivableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MaximumNoticePeriodForConvertingCashAndCashEquivalents." id="glpg_MaximumNoticePeriodForConvertingCashAndCashEquivalents." type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseInEquityDueToReasonablePossibleIncreaseInDesignatedRiskComponent" id="glpg_IncreaseDecreaseInEquityDueToReasonablePossibleIncreaseInDesignatedRiskComponent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInEquityDueToReasonablePossibleDecreaseInDesignatedRiskComponent" id="glpg_IncreaseDecreaseInEquityDueToReasonablePossibleDecreaseInDesignatedRiskComponent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInProfitOrLossDueToReasonablePossibleIncreaseInDesignatedRiskComponent" id="glpg_IncreaseDecreaseInProfitOrLossDueToReasonablePossibleIncreaseInDesignatedRiskComponent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInProfitOrLossDueToReasonablePossibleDecreaseInDesignatedRiskComponent" id="glpg_IncreaseDecreaseInProfitOrLossDueToReasonablePossibleDecreaseInDesignatedRiskComponent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContractCostsMember" id="glpg_ContractCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfCashFlowFromDiscontinuedOperations" id="glpg_DisclosureOfCashFlowFromDiscontinuedOperations" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosuresOfGainOrLossOnDisposalOfSubsidiaries" id="glpg_DisclosuresOfGainOrLossOnDisposalOfSubsidiaries" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContributionsToRelatedDevelopmentActivities." id="glpg_ContributionsToRelatedDevelopmentActivities." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AdjustmentForOtherNonCashExpenses" id="glpg_AdjustmentForOtherNonCashExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdjustmentForCorrectionForCashUsedForOtherLiabilitiesRelatedToDisposalOfSubsidiaries" id="glpg_AdjustmentForCorrectionForCashUsedForOtherLiabilitiesRelatedToDisposalOfSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SubscriptionRightPlan2024BeAllocatedOnMay2024Member" id="glpg_SubscriptionRightPlan2024BeAllocatedOnMay2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2024RmvAllocatedOnMay2024Member" id="glpg_SubscriptionRightPlan2024RmvAllocatedOnMay2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2024RowAllocatedOnMay2024Member" id="glpg_SubscriptionRightPlan2024RowAllocatedOnMay2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TwentyTwentyFourPlanRowAndRmvMember" id="glpg_TwentyTwentyFourPlanRowAndRmvMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2024BeRowAllocatedOnOctober2024Member" id="glpg_SubscriptionRightPlan2024BeRowAllocatedOnOctober2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2024RmvRowAllocatedOnMay2024Member" id="glpg_SubscriptionRightPlan2024RmvRowAllocatedOnMay2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2024IMember" id="glpg_RestrictedStockUnitPlan2024IMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2024IiMember" id="glpg_RestrictedStockUnitPlan2024IiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MinimumPercentageOfOwnershipRequiredToAppointInvestorBoardDesignees" id="glpg_MinimumPercentageOfOwnershipRequiredToAppointInvestorBoardDesignees" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="RevenueRecognisedRelatedToFilgotinibPerformanceObligation" id="glpg_RevenueRecognisedRelatedToFilgotinibPerformanceObligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RoyaltyIncomeRelatedToCommercializationOfFilgotinb" id="glpg_RoyaltyIncomeRelatedToCommercializationOfFilgotinb" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="JyselecaBusinessMember" id="glpg_JyselecaBusinessMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SettlementForNetCashAndWorkingCapital" id="glpg_SettlementForNetCashAndWorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredTaxAssetAsOfDisposalDate" id="glpg_DeferredTaxAssetAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InventoriesAsOfDisposalDate" id="glpg_InventoriesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherReservesAsOfDisposalDate" id="glpg_OtherReservesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RetirementBenefitLiabilitiesAsOfDisposalDate" id="glpg_RetirementBenefitLiabilitiesAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CurrentDeferredIncomeAsOfDisposalDate" id="glpg_CurrentDeferredIncomeAsOfDisposalDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="UpfrontPaymentReceivedIncome" id="glpg_UpfrontPaymentReceivedIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SettlementForNetCashAndWorkingCapitalIncomeExpense" id="glpg_SettlementForNetCashAndWorkingCapitalIncomeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AdditionalAdjustmentWorkingCapitalToBeSettled" id="glpg_AdditionalAdjustmentWorkingCapitalToBeSettled" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NetAssetsDisposedOfAdjustment" id="glpg_NetAssetsDisposedOfAdjustment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EffectOfCumulativeTranslationAdjustmentsReclassifiedFromEquityOnLossOnControl" id="glpg_EffectOfCumulativeTranslationAdjustmentsReclassifiedFromEquityOnLossOnControl" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FairValueOfFutureEarnOutsPayableByAlfasigma" id="glpg_FairValueOfFutureEarnOutsPayableByAlfasigma" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContributionForRDCostsPayableToAlfasigma" id="glpg_ContributionForRDCostsPayableToAlfasigma" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TransferToEscrowAccount" id="glpg_TransferToEscrowAccount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContributionForRDCostsPaidToAlfasigma" id="glpg_ContributionForRDCostsPaidToAlfasigma" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EarnOutsPaid" id="glpg_EarnOutsPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CashAndCashEquivalentBalancesDisposedOf" id="glpg_CashAndCashEquivalentBalancesDisposedOf" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SettlementOfPreExistingRelationships" id="glpg_SettlementOfPreExistingRelationships" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherLiabilitiesRelateToDisposalOfSubsidiariesLineItems" id="glpg_OtherLiabilitiesRelateToDisposalOfSubsidiariesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CostsAssociatedToSaleTakenIntoResultsIn2023" id="glpg_CostsAssociatedToSaleTakenIntoResultsIn2023" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CostsAssociatedToSaleTakenIntoResultsIn2024" id="glpg_CostsAssociatedToSaleTakenIntoResultsIn2024" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CostShareForGlobalDevelopmentActivitiesTerminated" id="glpg_CostShareForGlobalDevelopmentActivitiesTerminated" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="OtherMovementsIn2024Member" id="glpg_OtherMovementsIn2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TransactionPriceUpfrontConsideration" id="glpg_TransactionPriceUpfrontConsideration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TransactionPriceBeforeDeductionOfWarrantsIssuance." id="glpg_TransactionPriceBeforeDeductionOfWarrantsIssuance." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="RoyaltiesAmountReceived" id="glpg_RoyaltiesAmountReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TotalRevenueFromContinuingOperations" id="glpg_TotalRevenueFromContinuingOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DepreciationAndImpairmentMember" id="glpg_DepreciationAndImpairmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2024BeAllocatedOnOctober2024Member" id="glpg_SubscriptionRightPlan2024BeAllocatedOnOctober2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2024RowAllocatedOnOctober2024Member" id="glpg_SubscriptionRightPlan2024RowAllocatedOnOctober2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContingentConsideration" id="glpg_ContingentConsideration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfCarTProductCandidatesAcquired" id="glpg_NumberOfCarTProductCandidatesAcquired" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UpfrontExclusivityConsiderationPaid" id="glpg_UpfrontExclusivityConsiderationPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfDisputedInvoices" id="glpg_NumberOfDisputedInvoices" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AdjustmentForFairValueAdjustmentContingentConsiderationReceivable" id="glpg_AdjustmentForFairValueAdjustmentContingentConsiderationReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EffectOfDiscountingContingentConsiderationReceivable" id="glpg_EffectOfDiscountingContingentConsiderationReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NonCurrentAndCurrentFinancialInvestmentsDisclosureTextBlock" id="glpg_NonCurrentAndCurrentFinancialInvestmentsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfNonCurrentFinancialInvestmentsTableTextBlock" id="glpg_DisclosureOfNonCurrentFinancialInvestmentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TermDepositsMember" id="glpg_TermDepositsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RoyaltiesMember" id="glpg_RoyaltiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RoyaltiesReceivable" id="glpg_RoyaltiesReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfRsuGranted." id="glpg_NumberOfRsuGranted." type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfEntitiesFollowingSpinOff" id="glpg_NumberOfEntitiesFollowingSpinOff" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AlfasigmaMember" id="glpg_AlfasigmaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareHoldingPercentage" id="glpg_ShareHoldingPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="AllLossesIncludingInnovationIncomeDeductionMember" id="glpg_AllLossesIncludingInnovationIncomeDeductionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RevenueRecognizedRelatedToPerformanceObligationForDrugDiscoveryPlatform" id="glpg_RevenueRecognizedRelatedToPerformanceObligationForDrugDiscoveryPlatform" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CostReimbursementsRecognizedRelatedToDevelopmentOfGlpg1690" id="glpg_CostReimbursementsRecognizedRelatedToDevelopmentOfGlpg1690" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FinancialInvestmentsAndCashAndCashEquivalents" id="glpg_FinancialInvestmentsAndCashAndCashEquivalents" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CarTProductCandidatesMember" id="glpg_CarTProductCandidatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExclusiveRightsWithLonzaMember" id="glpg_ExclusiveRightsWithLonzaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AcquisitionInEquityInstrumentOfYear" id="glpg_AcquisitionInEquityInstrumentOfYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EscrowAccountMember" id="glpg_EscrowAccountMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CashRelatedToDisposalTransferedToEscrowAccount" id="glpg_CashRelatedToDisposalTransferedToEscrowAccount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ContinuedOperationsLineItem" id="glpg_ContinuedOperationsLineItem" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingCostsAndOtherOperatingIncomesLineItem" id="glpg_OperatingCostsAndOtherOperatingIncomesLineItem" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ConvertibleLoan" id="glpg_ConvertibleLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CashUsedForOtherLiabilitiesRelatedToDisposalOfSubsidiariesClassifiedAsOperatingActivities" id="glpg_CashUsedForOtherLiabilitiesRelatedToDisposalOfSubsidiariesClassifiedAsOperatingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProceedsFromSettlementOfHedgingInstrumentClassedAsInvest" id="glpg_ProceedsFromSettlementOfHedgingInstrumentClassedAsInvest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PercentageOfReductionInEmployeesAcrossBelgiumAndFrance" id="glpg_PercentageOfReductionInEmployeesAcrossBelgiumAndFrance" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CellTherapyBusinessAssociatedAssetsMember" id="glpg_CellTherapyBusinessAssociatedAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GileadCollaborationAgreementForGlpg1972Member" id="glpg_GileadCollaborationAgreementForGlpg1972Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FairValueAdjustmentContingentConsiderationPayable" id="glpg_FairValueAdjustmentContingentConsiderationPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PositiveEffectFromSettlementOfHedgingInstrument" id="glpg_PositiveEffectFromSettlementOfHedgingInstrument" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FairValueGainsAndInterestIncomeExcludingCurrencyExchangeResults." id="glpg_FairValueGainsAndInterestIncomeExcludingCurrencyExchangeResults." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LabEquipmentMember" id="glpg_LabEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AssetsRelatedToSmallMoleculeMember" id="glpg_AssetsRelatedToSmallMoleculeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CollaborationAgreementForDrugDiscoveryAndResearchOperationsMember" id="glpg_CollaborationAgreementForDrugDiscoveryAndResearchOperationsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExclusiveRightsPaidToAdaptimmuneMember" id="glpg_ExclusiveRightsPaidToAdaptimmuneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExclusiveRightsPaidToPregeneMember" id="glpg_ExclusiveRightsPaidToPregeneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AcquisitionOfYearConvertibleLoans" id="glpg_AcquisitionOfYearConvertibleLoans" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="Onco3rTherapeuticsMember" id="glpg_Onco3rTherapeuticsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughProfitAndLoss" id="glpg_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughProfitAndLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInDeferredChargess" id="glpg_IncreaseDecreaseInDeferredChargess" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TradeAndOtherLiabilitiesOtherNonCurrentLiabilitiesAndProvisionsExplanatory" id="glpg_TradeAndOtherLiabilitiesOtherNonCurrentLiabilitiesAndProvisionsExplanatory" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MilestoneAxis" id="glpg_MilestoneAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MilestoneDomain" id="glpg_MilestoneDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AuditorFeeAxis" id="glpg_AuditorFeeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AnalysisOfAuditFeeDomain" id="glpg_AnalysisOfAuditFeeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdjustmentsForProceedsFromSettlementOfHedgingInstrument" id="glpg_AdjustmentsForProceedsFromSettlementOfHedgingInstrument" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CorrectionForCashUsedForOtherLiabilitiesRelatedToDisposalOfSubsidiaries" id="glpg_CorrectionForCashUsedForOtherLiabilitiesRelatedToDisposalOfSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LakefrontBiotherapeuticsMember" id="glpg_LakefrontBiotherapeuticsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GalapagosCellTherapeuticsNvMember" id="glpg_GalapagosCellTherapeuticsNvMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GalapagosShanghaiBioscienceCoLtdMember" id="glpg_GalapagosShanghaiBioscienceCoLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfPubliclyTradeEntitiesTraded" id="glpg_NumberOfPubliclyTradeEntitiesTraded" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CostForStrategicReorganizationAndSeparation" id="glpg_CostForStrategicReorganizationAndSeparation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CostForEarlyTerminationOfCollaborations" id="glpg_CostForEarlyTerminationOfCollaborations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DealCost" id="glpg_DealCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AcceleratedNonCashCostRecognitionForSubscriptionRight" id="glpg_AcceleratedNonCashCostRecognitionForSubscriptionRight" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ProvisionForEarlyTerminationOfCollobaration" id="glpg_ProvisionForEarlyTerminationOfCollobaration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="GainOnFairValueAdjustmentOnContingentConsiderationPayable." id="glpg_GainOnFairValueAdjustmentOnContingentConsiderationPayable." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CellPointAndAbountbioMember" id="glpg_CellPointAndAbountbioMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TransferOfAssetsAndFinancingAgreementAxis" id="glpg_TransferOfAssetsAndFinancingAgreementAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TransferOfAssetsAndFinancingAgreementDomain" id="glpg_TransferOfAssetsAndFinancingAgreementDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GalapagosRealEstateBelgiumNvMember" id="glpg_GalapagosRealEstateBelgiumNvMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SettlementOfIntercompanyLoan" id="glpg_SettlementOfIntercompanyLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ConvertibleLoanMember" id="glpg_ConvertibleLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2025AllocatedInMay2025Member" id="glpg_SubscriptionRightPlan2025AllocatedInMay2025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2025CAllocatedInNovember2025Member" id="glpg_SubscriptionRightPlan2025CAllocatedInNovember2025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2025BAllocatedInAugust2025Member" id="glpg_SubscriptionRightPlan2025BAllocatedInAugust2025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2023BeAllocatedOnMayJune2023Member" id="glpg_SubscriptionRightPlan2023BeAllocatedOnMayJune2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SubscriptionRightPlan2023RmvRowAllocatedOnMayNovember2023Member" id="glpg_SubscriptionRightPlan2023RmvRowAllocatedOnMayNovember2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2025IMember" id="glpg_RestrictedStockUnitPlan2025IMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2025IiMember" id="glpg_RestrictedStockUnitPlan2025IiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2025IiiMember" id="glpg_RestrictedStockUnitPlan2025IiiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2025IvMember" id="glpg_RestrictedStockUnitPlan2025IvMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2025VMember" id="glpg_RestrictedStockUnitPlan2025VMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedStockUnitPlan2025ViMember" id="glpg_RestrictedStockUnitPlan2025ViMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Depreciation1Member" id="glpg_Depreciation1Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FilgotinibDevelopmentCostSharingReceivables." id="glpg_FilgotinibDevelopmentCostSharingReceivables." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="JyselecaBusinessNetCashInflowOutflowMember" id="glpg_JyselecaBusinessNetCashInflowOutflowMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TotalPreTaxEffectOfWinddown" id="glpg_TotalPreTaxEffectOfWinddown" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdjustmentForFairValueAdjustmentContingentConsiderationPayable" id="glpg_AdjustmentForFairValueAdjustmentContingentConsiderationPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PercentageOfOwnershipFollowingApprovalByEgm" id="glpg_PercentageOfOwnershipFollowingApprovalByEgm" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FixedOptInOptionPrice" id="glpg_FixedOptInOptionPrice" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="OlcaMember" id="glpg_OlcaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CliffVestingPeriod" id="glpg_CliffVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CliffVestingSchedule" id="glpg_CliffVestingSchedule" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageVestedUnderCertainPlans" id="glpg_PercentageVestedUnderCertainPlans" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfConvertibleLoanAbstract" id="glpg_DisclosureOfConvertibleLoanAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfConvertibleLoanTextBlock" id="glpg_DisclosureOfConvertibleLoanTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfConvertibleLoan" id="glpg_ScheduleOfConvertibleLoan" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RestructuringSmallMoleculesProgramProvisionMember" id="glpg_RestructuringSmallMoleculesProgramProvisionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestructuringCellTherapyActivitiesProvisionMember" id="glpg_RestructuringCellTherapyActivitiesProvisionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SalesAndMarketingDepreciationAndImpairmentAdjustment." id="glpg_SalesAndMarketingDepreciationAndImpairmentAdjustment." type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherMovementsIn2025Member" id="glpg_OtherMovementsIn2025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherIntangibleRelatedToAcquisitionOfCellPointAndAboundbioMember" id="glpg_OtherIntangibleRelatedToAcquisitionOfCellPointAndAboundbioMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InterestRateReceivablePerAnnum" id="glpg_InterestRateReceivablePerAnnum" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="SeveranceAccruals" id="glpg_SeveranceAccruals" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SubscriptionRightsPlan2025BoMember" id="glpg_SubscriptionRightsPlan2025BoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfInstrumentsOtherEquityInstrumentsCreated." id="glpg_NumberOfInstrumentsOtherEquityInstrumentsCreated." type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SubscriptionRightsPlan2026Member" id="glpg_SubscriptionRightsPlan2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PsuPlan2026.iMember" id="glpg_PsuPlan2026.iMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RsuPlan2025.viRsuPlan2026.iRsuPlan2026.iiMember" id="glpg_RsuPlan2025.viRsuPlan2026.iRsuPlan2026.iiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PercentageOfRsuVestingEachYear." id="glpg_PercentageOfRsuVestingEachYear." type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ThreeYearCliffVestingPercentage." id="glpg_ThreeYearCliffVestingPercentage." type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShareBasedPaymentArrangementsMember" id="glpg_ShareBasedPaymentArrangementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AllRsuAndPsuPlansMember" id="glpg_AllRsuAndPsuPlansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UnusedLossDurationAxis" id="glpg_UnusedLossDurationAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UnusedLossDurationDomain" id="glpg_UnusedLossDurationDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExpectedSalesMember" id="glpg_ExpectedSalesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContingentReceivableMember" id="glpg_ContingentReceivableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MinimumSubscriptionToBeDoneByThirdPartyAsConditionOfConversionOfLoanIntoPreferredEquityShares" id="glpg_MinimumSubscriptionToBeDoneByThirdPartyAsConditionOfConversionOfLoanIntoPreferredEquityShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DefinitePeriodMember" id="glpg_DefinitePeriodMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
