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<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
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  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_bbu_BusinessServicesSegmentMember_019e4af5-e2ec-7083-8138-135517746553_verboseLabel_en-US" xlink:label="lab_bbu_BusinessServicesSegmentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Business services</link:label>
    <link:label id="lab_bbu_BusinessServicesSegmentMember_019e4af5-e2ec-7956-850e-8a587ba36fd4_terseLabel_en-US" xlink:label="lab_bbu_BusinessServicesSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business services</link:label>
    <link:label id="lab_bbu_BusinessServicesSegmentMember_label_en-US" xlink:label="lab_bbu_BusinessServicesSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Services Segment [Member]</link:label>
    <link:label id="lab_bbu_BusinessServicesSegmentMember_documentation_en-US" xlink:label="lab_bbu_BusinessServicesSegmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Business Services Segment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BusinessServicesSegmentMember" xlink:href="bbu-20260630.xsd#bbu_BusinessServicesSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BusinessServicesSegmentMember" xlink:to="lab_bbu_BusinessServicesSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio_019e4af5-e246-7b05-9546-5a316f6aaa2e_terseLabel_en-US" xlink:label="lab_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exchange ratio, exchangeable shares</link:label>
    <link:label id="lab_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio_label_en-US" xlink:label="lab_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exchangeable Shares, LP Units Held, Exchange Ratio</link:label>
    <link:label id="lab_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio_documentation_en-US" xlink:label="lab_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Exchangeable Shares, LP Units Held, Exchange Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio" xlink:href="bbu-20260630.xsd#bbu_ExchangeableSharesLPUnitsHeldExchangeRatio"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio" xlink:to="lab_bbu_ExchangeableSharesLPUnitsHeldExchangeRatio" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory_019e4af5-e246-7f4d-9f39-be8357cb6125_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of segment revenues by geographical areas</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_019e4af5-e246-7f4d-a09f-889272fe6fa7_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Items that may be reclassified subsequently to profit or loss:</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContractLiabilities_019e4af5-e246-7055-bb21-8d3e4e74142d_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ContractLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Amounts due to customers&#160;&#8211;&#160;creditors</link:label>
    <link:label id="lab_ifrs-full_ContractLiabilities_label_en-US" xlink:label="lab_ifrs-full_ContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContractLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContractLiabilities" xlink:to="lab_ifrs-full_ContractLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativesMember_019e4af5-e2ec-74c9-856c-5546a7b5931c_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets (current and non-current)</link:label>
    <link:label id="lab_ifrs-full_DerivativesMember_019e4af5-e2ec-7426-9d21-d2a07730bae9_verboseLabel_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Derivatives assets</link:label>
    <link:label id="lab_ifrs-full_DerivativesMember_019e4af5-e2ec-7231-aa80-73cb85aceffa_netLabel_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Derivatives liabilities</link:label>
    <link:label id="lab_ifrs-full_DerivativesMember_label_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativesMember" xlink:to="lab_ifrs-full_DerivativesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentRestrictedCashAndCashEquivalents_019e4af5-e245-74db-94fb-bbfaab873c5a_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash</link:label>
    <link:label id="lab_ifrs-full_CurrentRestrictedCashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current restricted cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentRestrictedCashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:to="lab_ifrs-full_CurrentRestrictedCashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalsOtherNetAssets_019e4af5-e245-795b-a06d-56b9ffe7eb7c_terseLabel_en-US" xlink:label="lab_bbu_DisposalsOtherNetAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other net assets derecognized</link:label>
    <link:label id="lab_bbu_DisposalsOtherNetAssets_label_en-US" xlink:label="lab_bbu_DisposalsOtherNetAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, Other Net Assets</link:label>
    <link:label id="lab_bbu_DisposalsOtherNetAssets_documentation_en-US" xlink:label="lab_bbu_DisposalsOtherNetAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposals, Other Net Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalsOtherNetAssets" xlink:href="bbu-20260630.xsd#bbu_DisposalsOtherNetAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalsOtherNetAssets" xlink:to="lab_bbu_DisposalsOtherNetAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_019e4af5-e246-7bd4-ad2a-8e7482a1e144_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment and intangible assets</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of property, plant and equipment, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherOperatingExpense_019f93b0-caf8-7361-9ced-02c2d0e4bf73_terseLabel_en-US" xlink:label="lab_bbu_OtherOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other operating expense</link:label>
    <link:label id="lab_bbu_OtherOperatingExpense_label_en-US" xlink:label="lab_bbu_OtherOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Operating Expense</link:label>
    <link:label id="lab_bbu_OtherOperatingExpense_documentation_en-US" xlink:label="lab_bbu_OtherOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Operating Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherOperatingExpense" xlink:href="bbu-20260630.xsd#bbu_OtherOperatingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OtherOperatingExpense" xlink:to="lab_bbu_OtherOperatingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MajorBusinessCombinationMember_019e4af5-e2ed-7978-9c83-6265436d0eda_terseLabel_en-US" xlink:label="lab_ifrs-full_MajorBusinessCombinationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Major business combination</link:label>
    <link:label id="lab_ifrs-full_MajorBusinessCombinationMember_label_en-US" xlink:label="lab_ifrs-full_MajorBusinessCombinationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major business combination [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MajorBusinessCombinationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorBusinessCombinationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorBusinessCombinationMember" xlink:to="lab_ifrs-full_MajorBusinessCombinationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_019e4af5-e2ec-7e84-b8ba-6d3d1887bf51_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation</link:label>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_label_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of exchange differences on translation [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:to="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_019e4af5-e246-7472-a1af-9b4d115f42d0_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current liabilities recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current liabilities recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems_019e4af5-e2ec-7977-9ee0-693376140f47_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="lab_ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherNoncurrentFinancialAssets_019e4af5-e245-7df2-a92b-668108c1507a_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets</link:label>
    <link:label id="lab_ifrs-full_OtherNoncurrentFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other non-current financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherNoncurrentFinancialAssets" xlink:to="lab_ifrs-full_OtherNoncurrentFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_FinancialAssetsRelatedPartyTransactions_019f1c7e-918d-748d-9656-3560c68acb15_terseLabel_en-US" xlink:label="lab_bbu_FinancialAssetsRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_bbu_FinancialAssetsRelatedPartyTransactions_label_en-US" xlink:label="lab_bbu_FinancialAssetsRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets, Related Party Transactions</link:label>
    <link:label id="lab_bbu_FinancialAssetsRelatedPartyTransactions_documentation_en-US" xlink:label="lab_bbu_FinancialAssetsRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Assets, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_FinancialAssetsRelatedPartyTransactions" xlink:href="bbu-20260630.xsd#bbu_FinancialAssetsRelatedPartyTransactions"/>
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    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncome_019e4af5-e2ec-77f3-a9e5-4ed6017a1dde_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncome" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Deferred</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncome" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyDomain_019e4af5-e245-7c1b-bf05-b164050386aa_terseLabel_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [domain]</link:label>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyDomain_label_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_TaxReceivableAgreementRelatedPartyTransactions_019e4af5-e2ec-79f8-ae05-185fe8fb8fef_terseLabel_en-US" xlink:label="lab_bbu_TaxReceivableAgreementRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax receivable</link:label>
    <link:label id="lab_bbu_TaxReceivableAgreementRelatedPartyTransactions_label_en-US" xlink:label="lab_bbu_TaxReceivableAgreementRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Receivable Agreement, Related Party Transactions</link:label>
    <link:label id="lab_bbu_TaxReceivableAgreementRelatedPartyTransactions_documentation_en-US" xlink:label="lab_bbu_TaxReceivableAgreementRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Receivable Agreement, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_TaxReceivableAgreementRelatedPartyTransactions" xlink:href="bbu-20260630.xsd#bbu_TaxReceivableAgreementRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_TaxReceivableAgreementRelatedPartyTransactions" xlink:to="lab_bbu_TaxReceivableAgreementRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalAxis_019e4af5-e2ed-78da-bff8-67fafe5898df_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of share capital [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of share capital [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfShareCapitalAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfShareCapitalAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalAxis" xlink:to="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_019e4af5-e246-75b3-9138-469c94f9c69b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities_019e4af5-e2ec-79e4-b44a-0819993c6594_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued and other liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current accrued expenses and other current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:to="lab_ifrs-full_CurrentAccruedExpensesAndOtherCurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PartnerType1Domain_019e4af5-e2ed-7e36-b736-adb7473411d1_terseLabel_en-US" xlink:label="lab_bbu_PartnerType1Domain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Partner Type 1 [Domain]</link:label>
    <link:label id="lab_bbu_PartnerType1Domain_label_en-US" xlink:label="lab_bbu_PartnerType1Domain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partner Type 1 [Domain]</link:label>
    <link:label id="lab_bbu_PartnerType1Domain_documentation_en-US" xlink:label="lab_bbu_PartnerType1Domain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Domain] for Partner Type 1 [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PartnerType1Domain" xlink:href="bbu-20260630.xsd#bbu_PartnerType1Domain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PartnerType1Domain" xlink:to="lab_bbu_PartnerType1Domain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalsNonRecourseBorrowings_019e4af5-e2ed-7232-a51d-fc25ba2c1a6c_terseLabel_en-US" xlink:label="lab_bbu_DisposalsNonRecourseBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-recourse borrowings derecognized</link:label>
    <link:label id="lab_bbu_DisposalsNonRecourseBorrowings_label_en-US" xlink:label="lab_bbu_DisposalsNonRecourseBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, Non-Recourse Borrowings</link:label>
    <link:label id="lab_bbu_DisposalsNonRecourseBorrowings_documentation_en-US" xlink:label="lab_bbu_DisposalsNonRecourseBorrowings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposals, Non-Recourse Borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalsNonRecourseBorrowings" xlink:href="bbu-20260630.xsd#bbu_DisposalsNonRecourseBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalsNonRecourseBorrowings" xlink:to="lab_bbu_DisposalsNonRecourseBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsAbstract_019e4af5-e2ec-7488-bdd4-d7e943e4b6c0_terseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsAbstract_label_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalentsAbstract" xlink:to="lab_ifrs-full_CashAndCashEquivalentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Equity_019e4af5-e2ec-71d9-9570-a851ec930512_totalLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity</link:label>
    <link:label id="lab_ifrs-full_Equity_019e4af5-e2ec-7f69-b560-ed9e41d0e4ed_periodStartLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance</link:label>
    <link:label id="lab_ifrs-full_Equity_019e4af5-e2ec-7067-b0ba-c624398f03f5_periodEndLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance</link:label>
    <link:label id="lab_ifrs-full_Equity_019e4af5-e2ec-78c4-949c-672d8ae8526e_terseLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:label id="lab_ifrs-full_Equity_label_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Equity" xlink:to="lab_ifrs-full_Equity" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CurrentInsuranceLiabilities_019e4af5-e2ed-74b2-bd92-4d44735ad082_terseLabel_en-US" xlink:label="lab_bbu_CurrentInsuranceLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance liabilities</link:label>
    <link:label id="lab_bbu_CurrentInsuranceLiabilities_label_en-US" xlink:label="lab_bbu_CurrentInsuranceLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current insurance liabilities</link:label>
    <link:label id="lab_bbu_CurrentInsuranceLiabilities_documentation_en-US" xlink:label="lab_bbu_CurrentInsuranceLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Current insurance liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CurrentInsuranceLiabilities" xlink:href="bbu-20260630.xsd#bbu_CurrentInsuranceLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CurrentInsuranceLiabilities" xlink:to="lab_bbu_CurrentInsuranceLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations_019f1db2-8c21-7ff9-8c2a-7dfa4587d463_negatedTerseLabel_en-US" xlink:label="lab_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Current income tax (expense) recovery</link:label>
    <link:label id="lab_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations_label_en-US" xlink:label="lab_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Income Tax (Expense) Recovery, Previously Recognized In Funds From Operations</link:label>
    <link:label id="lab_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations_documentation_en-US" xlink:label="lab_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Current Income Tax (Expense) Recovery, Previously Recognized In Funds From Operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations" xlink:href="bbu-20260630.xsd#bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations" xlink:to="lab_bbu_CurrentIncomeTaxExpenseRecoveryPreviouslyRecognizedInFundsFromOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipment_019e4af5-e2ec-715d-a7cb-51458fecc0af_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipment_019e4af5-e2ec-7eea-9876-5d2437d178e8_periodStartLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipment_019e4af5-e2ec-7a30-93ce-e4230230e9a3_periodEndLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipment" xlink:to="lab_ifrs-full_PropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SalesFairValueMeasurementAssets_019e4af5-e2ed-7629-81c2-bd92ae3046e5_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Disposals</link:label>
    <link:label id="lab_ifrs-full_SalesFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SalesFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SalesFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SalesFairValueMeasurementAssets" xlink:to="lab_ifrs-full_SalesFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents_019e4af5-e2ec-7319-a21d-12105402cbbe_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash and deposits</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) decrease (increase) in restricted cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:to="lab_ifrs-full_CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities_019e4af5-e246-7539-b12a-00e8666fdf34_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Financial assets and other</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of financial instruments, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset_019e4af5-e245-79ca-a494-f69d74c2eb0d_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments to liabilities for incurred claims</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes that relate to past service, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToPastServiceInsuranceContractsLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_019e4af5-e2ed-7b15-924c-b6def6e1ed3b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about borrowings [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about borrowings [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress_019e4af5-e2ec-73df-88e5-4f7058f292a2_terseLabel_en-US" xlink:label="lab_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit recognized to date</link:label>
    <link:label id="lab_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress_label_en-US" xlink:label="lab_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recognized Profits Less Recognized Losses For Contracts In Progress</link:label>
    <link:label id="lab_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress_documentation_en-US" xlink:label="lab_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Recognized Profits Less Recognized Losses For Contracts In Progress</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress" xlink:href="bbu-20260630.xsd#bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress" xlink:to="lab_bbu_RecognizedProfitsLessRecognizedLossesForContractsInProgress" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NumberOfSharesExchanged_019f3c8a-cf8f-7cc2-9382-6189ac785cd1_terseLabel_en-US" xlink:label="lab_bbu_NumberOfSharesExchanged" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares exchanged</link:label>
    <link:label id="lab_bbu_NumberOfSharesExchanged_label_en-US" xlink:label="lab_bbu_NumberOfSharesExchanged" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Shares Exchanged</link:label>
    <link:label id="lab_bbu_NumberOfSharesExchanged_documentation_en-US" xlink:label="lab_bbu_NumberOfSharesExchanged" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Shares Exchanged</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NumberOfSharesExchanged" xlink:href="bbu-20260630.xsd#bbu_NumberOfSharesExchanged"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NumberOfSharesExchanged" xlink:to="lab_bbu_NumberOfSharesExchanged" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_019e4af5-e2ec-7526-bf72-2d8afecc160d_periodStartLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_019e4af5-e2ec-7a88-b137-65e00a8a968c_periodEndLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract_019e4af5-e246-774c-9fbf-7a2b2a736386_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of comprehensive income [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of comprehensive income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfComprehensiveIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_HealthcareServicesOperationMember_019e4af5-e2ec-733b-a239-1743504713bb_terseLabel_en-US" xlink:label="lab_bbu_HealthcareServicesOperationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Healthcare Services Operation</link:label>
    <link:label id="lab_bbu_HealthcareServicesOperationMember_label_en-US" xlink:label="lab_bbu_HealthcareServicesOperationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Healthcare Services Operation [Member]</link:label>
    <link:label id="lab_bbu_HealthcareServicesOperationMember_documentation_en-US" xlink:label="lab_bbu_HealthcareServicesOperationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Healthcare Services Operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_HealthcareServicesOperationMember" xlink:href="bbu-20260630.xsd#bbu_HealthcareServicesOperationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_HealthcareServicesOperationMember" xlink:to="lab_bbu_HealthcareServicesOperationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1_019e4af5-e246-7a19-b42a-9b6d50d4c078_terseLabel_en-US" xlink:label="lab_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit facility, maximum borrowing capacity</link:label>
    <link:label id="lab_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1_label_en-US" xlink:label="lab_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line Of Credit Facility, Maximum Borrowing Capacity 1</link:label>
    <link:label id="lab_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1_documentation_en-US" xlink:label="lab_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Line Of Credit Facility, Maximum Borrowing Capacity 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1" xlink:href="bbu-20260630.xsd#bbu_LineOfCreditFacilityMaximumBorrowingCapacity1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1" xlink:to="lab_bbu_LineOfCreditFacilityMaximumBorrowingCapacity1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityLineItems_019e4af5-e245-7f9b-adb1-3aa8994a5257_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [line items]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityLineItems_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract_019e4af5-e2ed-70b5-b7cd-ee67944c35bd_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Attributable to:</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income attributable to [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:to="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NumberOfOperatingSegments1_019e4af5-e245-7299-9ef2-44200eaf2922_terseLabel_en-US" xlink:label="lab_bbu_NumberOfOperatingSegments1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of operating segments</link:label>
    <link:label id="lab_bbu_NumberOfOperatingSegments1_label_en-US" xlink:label="lab_bbu_NumberOfOperatingSegments1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Operating Segments 1</link:label>
    <link:label id="lab_bbu_NumberOfOperatingSegments1_documentation_en-US" xlink:label="lab_bbu_NumberOfOperatingSegments1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Operating Segments 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NumberOfOperatingSegments1" xlink:href="bbu-20260630.xsd#bbu_NumberOfOperatingSegments1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NumberOfOperatingSegments1" xlink:to="lab_bbu_NumberOfOperatingSegments1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_019e4af5-e2ed-76d5-b807-081591817c35_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, before tax, exchange differences on translation of foreign operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract_019e4af5-e2ed-7231-94fc-9d6a569d7c64_terseLabel_en-US" xlink:label="lab_ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate Information And Statement Of IFRS Compliance [Abstract]</link:label>
    <link:label id="lab_ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract_label_en-US" xlink:label="lab_ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate information and statement of IFRS compliance [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:to="lab_ifrs-full_CorporateInformationAndStatementOfIFRSComplianceAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level1OfFairValueHierarchyMember_019e4af5-e2ec-7f4e-b91c-9a19d62f1fe1_terseLabel_en-US" xlink:label="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level&#160;1</link:label>
    <link:label id="lab_ifrs-full_Level1OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 1 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level1OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level1OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_InterestsInOtherEntitiesAbstract_019e4af5-e2ed-72e3-875c-d60392982e70_terseLabel_en-US" xlink:label="lab_bbu_InterestsInOtherEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interests In Other Entities [Abstract]</link:label>
    <link:label id="lab_bbu_InterestsInOtherEntitiesAbstract_label_en-US" xlink:label="lab_bbu_InterestsInOtherEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interests In Other Entities [Abstract]</link:label>
    <link:label id="lab_bbu_InterestsInOtherEntitiesAbstract_documentation_en-US" xlink:label="lab_bbu_InterestsInOtherEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interests In Other Entities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_InterestsInOtherEntitiesAbstract" xlink:href="bbu-20260630.xsd#bbu_InterestsInOtherEntitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_InterestsInOtherEntitiesAbstract" xlink:to="lab_bbu_InterestsInOtherEntitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefund_019e4af5-e245-716a-b347-e3366aa334f7_terseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefund" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income taxes paid (received)</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefund_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefund" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income taxes paid (refund)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefund" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxesPaidRefund"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxesPaidRefund" xlink:to="lab_ifrs-full_IncomeTaxesPaidRefund" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets_019e4af5-e2ec-7338-b497-9a6ab5c5ac88_terseLabel_en-US" xlink:label="lab_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prepayments and other assets</link:label>
    <link:label id="lab_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets_label_en-US" xlink:label="lab_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncurrent Prepayments And Other Noncurrent Assets</link:label>
    <link:label id="lab_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets_documentation_en-US" xlink:label="lab_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Noncurrent Prepayments And Other Noncurrent Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets" xlink:href="bbu-20260630.xsd#bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets" xlink:to="lab_bbu_NoncurrentPrepaymentsAndOtherNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_019e4af5-e2ed-7d41-8212-beeefa26081e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BrookfieldAssetManagementMember_019f9c29-d090-77a7-ae40-c07cf1397dc8_terseLabel_en-US" xlink:label="lab_bbu_BrookfieldAssetManagementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brookfield Asset Management</link:label>
    <link:label id="lab_bbu_BrookfieldAssetManagementMember_label_en-US" xlink:label="lab_bbu_BrookfieldAssetManagementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Brookfield Asset Management [Member]</link:label>
    <link:label id="lab_bbu_BrookfieldAssetManagementMember_documentation_en-US" xlink:label="lab_bbu_BrookfieldAssetManagementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brookfield Asset Management</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BrookfieldAssetManagementMember" xlink:href="bbu-20260630.xsd#bbu_BrookfieldAssetManagementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BrookfieldAssetManagementMember" xlink:to="lab_bbu_BrookfieldAssetManagementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries_019e4af5-e246-7c17-bdb7-603917e55f38_negatedTerseLabel_en-US" xlink:label="lab_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Preferred equity distributions</link:label>
    <link:label id="lab_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries_label_en-US" xlink:label="lab_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Distributions Attributable To Preferred Equity In Operating Subsidiaries</link:label>
    <link:label id="lab_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries_documentation_en-US" xlink:label="lab_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distributions Attributable To Preferred Equity In Operating Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries" xlink:href="bbu-20260630.xsd#bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries" xlink:to="lab_bbu_DistributionsAttributableToPreferredEquityInOperatingSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_FinancialAssetsAndOtherAssets_019e4af5-e245-7f56-b95b-1600d55f4925_terseLabel_en-US" xlink:label="lab_bbu_FinancialAssetsAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_bbu_FinancialAssetsAndOtherAssets_label_en-US" xlink:label="lab_bbu_FinancialAssetsAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets And Other Assets</link:label>
    <link:label id="lab_bbu_FinancialAssetsAndOtherAssets_documentation_en-US" xlink:label="lab_bbu_FinancialAssetsAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Assets And Other Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_FinancialAssetsAndOtherAssets" xlink:href="bbu-20260630.xsd#bbu_FinancialAssetsAndOtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_FinancialAssetsAndOtherAssets" xlink:to="lab_bbu_FinancialAssetsAndOtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UndrawnBorrowingFacilities_019e4af5-e2ec-77bd-a056-fbcea7f5e345_terseLabel_en-US" xlink:label="lab_ifrs-full_UndrawnBorrowingFacilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Undrawn borrowing facilities</link:label>
    <link:label id="lab_ifrs-full_UndrawnBorrowingFacilities_label_en-US" xlink:label="lab_ifrs-full_UndrawnBorrowingFacilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Undrawn borrowing facilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UndrawnBorrowingFacilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UndrawnBorrowingFacilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UndrawnBorrowingFacilities" xlink:to="lab_ifrs-full_UndrawnBorrowingFacilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_InfrastructureServicesSegmentMember_019e4af5-e2ec-7b77-b8b3-fd57ece69951_terseLabel_en-US" xlink:label="lab_bbu_InfrastructureServicesSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Infrastructure services</link:label>
    <link:label id="lab_bbu_InfrastructureServicesSegmentMember_label_en-US" xlink:label="lab_bbu_InfrastructureServicesSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Infrastructure Services Segment [Member]</link:label>
    <link:label id="lab_bbu_InfrastructureServicesSegmentMember_documentation_en-US" xlink:label="lab_bbu_InfrastructureServicesSegmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Infrastructure Services Segment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_InfrastructureServicesSegmentMember" xlink:href="bbu-20260630.xsd#bbu_InfrastructureServicesSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_InfrastructureServicesSegmentMember" xlink:to="lab_bbu_InfrastructureServicesSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level2OfFairValueHierarchyMember_019e4af5-e245-77a5-b712-4cfc720cd5f1_terseLabel_en-US" xlink:label="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level&#160;2</link:label>
    <link:label id="lab_ifrs-full_Level2OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 2 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level2OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level2OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners_019e4af5-e245-767c-ac26-c336e9b7e475_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contributions</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase through other contributions by owners, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset_019e4af5-e2ed-762b-aab9-e993252ba720_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in estimates that adjust the contractual service margin</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes in estimates that adjust contractual service margin, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughChangesInEstimatesThatAdjustContractualServiceMarginInsuranceContractsLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill_019e4af5-e2ec-7a91-bdd7-1a025dcc227c_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations</link:label>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember_019e4af5-e2ec-7643-bfd2-ecde9ed35701_terseLabel_en-US" xlink:label="lab_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions, decommissioning liabilities, deferred revenues, unearned premium reserve, work in progress, post-employment benefits, liabilities held for sale and tax/duties</link:label>
    <link:label id="lab_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember_label_en-US" xlink:label="lab_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provisions, Decommissioning Liabilities, Deferred Revenues, Unearned Premium Reserve, Work In Progress, Post-Employment Benefits, Liabilities Held For Sale And Tax/Duties [Member]</link:label>
    <link:label id="lab_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember_documentation_en-US" xlink:label="lab_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Provisions, Decommissioning Liabilities, Deferred Revenues, Unearned Premium Reserve, Work In Progress, Post-Employment Benefits, Liabilities Held For Sale And Tax/Duties</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember" xlink:href="bbu-20260630.xsd#bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember" xlink:to="lab_bbu_ProvisionsDecommissioningLiabilitiesDeferredRevenuesUnearnedPremiumReserveWorkInProgressPostEmploymentBenefitsLiabilitiesHeldForSaleAndTaxDutiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentPayables_019e4af5-e246-78b6-83c1-902a1387cfad_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentPayables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable and other</link:label>
    <link:label id="lab_ifrs-full_NoncurrentPayables_019e4af5-e246-76f7-965a-c7018d5c3e37_totalLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentPayables" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total non-current</link:label>
    <link:label id="lab_ifrs-full_NoncurrentPayables_label_en-US" xlink:label="lab_ifrs-full_NoncurrentPayables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other non-current payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentPayables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentPayables" xlink:to="lab_ifrs-full_NoncurrentPayables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentDerivativeFinancialLiabilities_019e4af5-e246-7815-bf10-7cd03100a197_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current financial liability</link:label>
    <link:label id="lab_ifrs-full_CurrentDerivativeFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current derivative financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:to="lab_ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019e4af5-e2ed-7999-84c0-dda955a7fd63_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FVTPL</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SaleOfBusinessInitialRedemptionAmount_019e4af5-e2ec-7855-8f5b-bdfca649db3a_terseLabel_en-US" xlink:label="lab_bbu_SaleOfBusinessInitialRedemptionAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from fund with initial redemption value</link:label>
    <link:label id="lab_bbu_SaleOfBusinessInitialRedemptionAmount_label_en-US" xlink:label="lab_bbu_SaleOfBusinessInitialRedemptionAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale Of Business, Initial Redemption Amount</link:label>
    <link:label id="lab_bbu_SaleOfBusinessInitialRedemptionAmount_documentation_en-US" xlink:label="lab_bbu_SaleOfBusinessInitialRedemptionAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale Of Business, Initial Redemption Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SaleOfBusinessInitialRedemptionAmount" xlink:href="bbu-20260630.xsd#bbu_SaleOfBusinessInitialRedemptionAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SaleOfBusinessInitialRedemptionAmount" xlink:to="lab_bbu_SaleOfBusinessInitialRedemptionAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NonCurrentBillingRights_019e4af5-e2ec-795d-91e2-37b02ecb92c9_terseLabel_en-US" xlink:label="lab_bbu_NonCurrentBillingRights" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Billing rights</link:label>
    <link:label id="lab_bbu_NonCurrentBillingRights_label_en-US" xlink:label="lab_bbu_NonCurrentBillingRights" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Current Billing Rights</link:label>
    <link:label id="lab_bbu_NonCurrentBillingRights_documentation_en-US" xlink:label="lab_bbu_NonCurrentBillingRights" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Current Billing Rights</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NonCurrentBillingRights" xlink:href="bbu-20260630.xsd#bbu_NonCurrentBillingRights"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NonCurrentBillingRights" xlink:to="lab_bbu_NonCurrentBillingRights" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill_019e4af5-e245-7033-9f32-982380e8be92_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfFinancialPositionAbstract_019e4af5-e2ec-7399-ac64-cddcdf735d9d_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of financial position [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of financial position [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NumberOfBusinessesSold_019e4af5-e2ed-7e3a-af0e-860499ac9b78_terseLabel_en-US" xlink:label="lab_bbu_NumberOfBusinessesSold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of businesses sold</link:label>
    <link:label id="lab_bbu_NumberOfBusinessesSold_label_en-US" xlink:label="lab_bbu_NumberOfBusinessesSold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Businesses Sold</link:label>
    <link:label id="lab_bbu_NumberOfBusinessesSold_documentation_en-US" xlink:label="lab_bbu_NumberOfBusinessesSold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Businesses Sold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NumberOfBusinessesSold" xlink:href="bbu-20260630.xsd#bbu_NumberOfBusinessesSold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NumberOfBusinessesSold" xlink:to="lab_bbu_NumberOfBusinessesSold" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfExpensesExplanatory_019e4af5-e246-707c-9193-99798f75db72_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfExpensesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DIRECT OPERATING COSTS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfExpensesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfExpensesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of expenses [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfExpensesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfExpensesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfExpensesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfExpensesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherOperatingIncomeExpense_019e4af5-e2ec-79a1-bff5-e55c2463672a_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income (expense), net</link:label>
    <link:label id="lab_ifrs-full_OtherOperatingIncomeExpense_label_en-US" xlink:label="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other operating income (expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:to="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract_019e4af5-e246-75d4-966f-45676493d07a_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in intangible assets and goodwill [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in intangible assets and goodwill [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForProvisions_019e4af5-e246-7113-8507-f4df07d202e6_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForProvisions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions and other items</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForProvisions_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForProvisions" xlink:to="lab_ifrs-full_AdjustmentsForProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions_019e4af5-e246-7773-b85b-6f2dff4a3d36_terseLabel_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed preferential cumulative distribution percentage</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions_label_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Equity Security Subscription Under Partnership, Annual Cumulative Distribution Percentage, Related Party Transactions</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions_documentation_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preferred Equity Security Subscription Under Partnership, Annual Cumulative Distribution Percentage, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions" xlink:href="bbu-20260630.xsd#bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions" xlink:to="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipAnnualCumulativeDistributionPercentageRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_019e4af5-e2ec-7da3-b17d-a0009e9da5b2_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repurchases of Class A shares</link:label>
    <link:label id="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_label_en-US" xlink:label="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to acquire or redeem entity's shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets_019e4af5-e246-7634-80c5-1250642047fe_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prepayments and&#160;other assets</link:label>
    <link:label id="lab_ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current prepayments and other current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets" xlink:to="lab_ifrs-full_CurrentPrepaymentsAndOtherCurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentLiabilities_019e4af5-e2ed-7439-aa2b-569b64b5e04a_totalLabel_en-US" xlink:label="lab_ifrs-full_CurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Current liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLiabilities" xlink:to="lab_ifrs-full_CurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowHedgesMember_019e4af5-e245-7ac7-90de-2965c2f9638e_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowHedgesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow hedges</link:label>
    <link:label id="lab_ifrs-full_CashFlowHedgesMember_label_en-US" xlink:label="lab_ifrs-full_CashFlowHedgesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flow hedges [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowHedgesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowHedgesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowHedgesMember" xlink:to="lab_ifrs-full_CashFlowHedgesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_019e4af5-e2ed-7dde-b23f-02845cddb35e_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_IndustrialsSegmentMember_019e4af5-e246-7b39-8b48-81d1c652eb9a_terseLabel_en-US" xlink:label="lab_bbu_IndustrialsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Industrials</link:label>
    <link:label id="lab_bbu_IndustrialsSegmentMember_label_en-US" xlink:label="lab_bbu_IndustrialsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Industrials Segment [Member]</link:label>
    <link:label id="lab_bbu_IndustrialsSegmentMember_documentation_en-US" xlink:label="lab_bbu_IndustrialsSegmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Industrials [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IndustrialsSegmentMember" xlink:href="bbu-20260630.xsd#bbu_IndustrialsSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_IndustrialsSegmentMember" xlink:to="lab_bbu_IndustrialsSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxAssets_019e4af5-e2ec-7c16-95e2-66af5ae951cc_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income tax assets</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxAssets_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxAssets" xlink:to="lab_ifrs-full_DeferredTaxAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Inventories_019e4af5-e2ec-7ee2-9960-38505563c8dc_terseLabel_en-US" xlink:label="lab_ifrs-full_Inventories" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory, net</link:label>
    <link:label id="lab_ifrs-full_Inventories_019e4af5-e2ec-732a-b33e-4f92ae03e10d_totalLabel_en-US" xlink:label="lab_ifrs-full_Inventories" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Carrying amount of inventories</link:label>
    <link:label id="lab_ifrs-full_Inventories_label_en-US" xlink:label="lab_ifrs-full_Inventories" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current inventories</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Inventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Inventories"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Inventories" xlink:to="lab_ifrs-full_Inventories" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncontrollingInterestsMember_019e4af5-e245-7eb5-99b4-a5f2a969a761_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterestsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interest - Redemption-Exchange Units held by Brookfield Asset Management Inc.</link:label>
    <link:label id="lab_ifrs-full_NoncontrollingInterestsMember_label_en-US" xlink:label="lab_ifrs-full_NoncontrollingInterestsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-controlling interests [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncontrollingInterestsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncontrollingInterestsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncontrollingInterestsMember" xlink:to="lab_ifrs-full_NoncontrollingInterestsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInsuranceContractsExplanatory_019e4af5-e2ec-7431-92b8-823a6bbd6661_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInsuranceContractsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">INSURANCE CONTRACTS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInsuranceContractsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInsuranceContractsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of insurance contracts [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInsuranceContractsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInsuranceContractsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInsuranceContractsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInsuranceContractsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_019e4af5-e2ec-7736-a085-2c39ec610060_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Marketable securities</link:label>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current financial assets at fair value through profit or loss, classified as held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading"/>
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    <link:label id="lab_ifrs-full_SalesFairValueMeasurementLiabilities_019f1c82-8475-77ee-897e-9b49f5950652_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Disposals</link:label>
    <link:label id="lab_ifrs-full_SalesFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SalesFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_019e4af5-e245-7014-83a1-6d172ee94e0b_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesDomain_019e4af5-e245-7ef8-851e-0dda0075cfe8_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherFinancialAssetsMember_019e4af5-e246-7a28-8ab8-181f4bf30a7a_terseLabel_en-US" xlink:label="lab_bbu_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets</link:label>
    <link:label id="lab_bbu_OtherFinancialAssetsMember_label_en-US" xlink:label="lab_bbu_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Assets [Member]</link:label>
    <link:label id="lab_bbu_OtherFinancialAssetsMember_documentation_en-US" xlink:label="lab_bbu_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Financial Assets [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherFinancialAssetsMember" xlink:href="bbu-20260630.xsd#bbu_OtherFinancialAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OtherFinancialAssetsMember" xlink:to="lab_bbu_OtherFinancialAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfJointVenturesTable_019f9326-0bca-7f9b-a5e8-73fe124d034d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfJointVenturesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of joint ventures [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfJointVenturesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfJointVenturesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of joint ventures [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfJointVenturesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfJointVenturesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfJointVenturesTable" xlink:to="lab_ifrs-full_DisclosureOfJointVenturesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions_019e4af5-e2ec-7a5a-af39-6919c61734c2_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business services revenues</link:label>
    <link:label id="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from rendering of services, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:to="lab_ifrs-full_RevenueFromRenderingOfServicesRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncome_019e4af5-e2ec-7d13-bc1a-0538c3448a12_totalLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income (loss)</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncome_019f1bbd-68fd-7e43-a415-495907639e93_verboseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total comprehensive income (loss)</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="lab_ifrs-full_ComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation_019e4af5-e246-7ab4-9651-c294435a577f_terseLabel_en-US" xlink:label="lab_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain recognized on deconsolidation due to loss of control of our healthcare services operation</link:label>
    <link:label id="lab_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation_label_en-US" xlink:label="lab_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) Recognized On Deconsolidation Of Our Healthcare Services Operation</link:label>
    <link:label id="lab_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation_documentation_en-US" xlink:label="lab_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gain (Loss) Recognized On Deconsolidation Of Our Healthcare Services Operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation" xlink:href="bbu-20260630.xsd#bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation" xlink:to="lab_bbu_GainLossRecognizedOnDeconsolidationOfOurHealthcareServicesOperation" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityAbstract_019e4af5-e2ec-77e7-9786-33d72fc22cc9_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_GPUnitsMember_019f9c1e-9a8b-72bd-b4a0-c766101d2941_terseLabel_en-US" xlink:label="lab_bbu_GPUnitsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GP Units</link:label>
    <link:label id="lab_bbu_GPUnitsMember_label_en-US" xlink:label="lab_bbu_GPUnitsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">GP Units [Member]</link:label>
    <link:label id="lab_bbu_GPUnitsMember_documentation_en-US" xlink:label="lab_bbu_GPUnitsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">GP Units</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_GPUnitsMember" xlink:href="bbu-20260630.xsd#bbu_GPUnitsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_GPUnitsMember" xlink:to="lab_bbu_GPUnitsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MeasurementDomain_019e4af5-e2ec-700b-9f92-7ca6053a49cf_terseLabel_en-US" xlink:label="lab_ifrs-full_MeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measurement [domain]</link:label>
    <link:label id="lab_ifrs-full_MeasurementDomain_label_en-US" xlink:label="lab_ifrs-full_MeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MeasurementDomain" xlink:to="lab_ifrs-full_MeasurementDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_GainsLossesOnExtinguishmentOfDebtNet_019e4af5-e2ed-748f-ae68-3f370b784eea_terseLabel_en-US" xlink:label="lab_bbu_GainsLossesOnExtinguishmentOfDebtNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net gain (loss) on debt modification and extinguishment</link:label>
    <link:label id="lab_bbu_GainsLossesOnExtinguishmentOfDebtNet_label_en-US" xlink:label="lab_bbu_GainsLossesOnExtinguishmentOfDebtNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Extinguishment Of Debt, Net</link:label>
    <link:label id="lab_bbu_GainsLossesOnExtinguishmentOfDebtNet_documentation_en-US" xlink:label="lab_bbu_GainsLossesOnExtinguishmentOfDebtNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Extinguishment Of Debt, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_GainsLossesOnExtinguishmentOfDebtNet" xlink:href="bbu-20260630.xsd#bbu_GainsLossesOnExtinguishmentOfDebtNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_GainsLossesOnExtinguishmentOfDebtNet" xlink:to="lab_bbu_GainsLossesOnExtinguishmentOfDebtNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WorkInProgress_019e4af5-e245-714f-828b-9fbcc0cdf936_terseLabel_en-US" xlink:label="lab_ifrs-full_WorkInProgress" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Work in progress</link:label>
    <link:label id="lab_ifrs-full_WorkInProgress_label_en-US" xlink:label="lab_ifrs-full_WorkInProgress" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current work in progress</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WorkInProgress" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WorkInProgress"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WorkInProgress" xlink:to="lab_ifrs-full_WorkInProgress" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems_019e4af5-e246-77fb-967a-61f4cce1c9cb_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Held For Sale [Line Items]</link:label>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems_label_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Held For Sale [Line Items]</link:label>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems_documentation_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Line Items] for Disclosure Of Assets And Liabilities Held For Sale [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems" xlink:to="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_InterestPaid1_019e4af5-e2ed-7df3-9b7c-19d66d585233_terseLabel_en-US" xlink:label="lab_bbu_InterestPaid1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest paid (received)</link:label>
    <link:label id="lab_bbu_InterestPaid1_label_en-US" xlink:label="lab_bbu_InterestPaid1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Paid 1</link:label>
    <link:label id="lab_bbu_InterestPaid1_documentation_en-US" xlink:label="lab_bbu_InterestPaid1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Paid 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_InterestPaid1" xlink:href="bbu-20260630.xsd#bbu_InterestPaid1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_InterestPaid1" xlink:to="lab_bbu_InterestPaid1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems_019e4af5-e2ed-7eb6-a366-871c302555dc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_019e4af5-e2ed-74b4-9b9d-944c860959d9_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BrookfieldHoldersBeneficialOwnershipMember_019f9c15-26d3-73c3-a4f1-300aab764d78_terseLabel_en-US" xlink:label="lab_bbu_BrookfieldHoldersBeneficialOwnershipMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brookfield Holders beneficial ownership</link:label>
    <link:label id="lab_bbu_BrookfieldHoldersBeneficialOwnershipMember_label_en-US" xlink:label="lab_bbu_BrookfieldHoldersBeneficialOwnershipMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Brookfield Holders Beneficial Ownership [Member]</link:label>
    <link:label id="lab_bbu_BrookfieldHoldersBeneficialOwnershipMember_documentation_en-US" xlink:label="lab_bbu_BrookfieldHoldersBeneficialOwnershipMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brookfield Holders Beneficial Ownership</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BrookfieldHoldersBeneficialOwnershipMember" xlink:href="bbu-20260630.xsd#bbu_BrookfieldHoldersBeneficialOwnershipMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BrookfieldHoldersBeneficialOwnershipMember" xlink:to="lab_bbu_BrookfieldHoldersBeneficialOwnershipMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts_019e4af5-e246-7cea-9981-b7ad2c86fbd8_terseLabel_en-US" xlink:label="lab_ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions and decommissioning liabilities</link:label>
    <link:label id="lab_ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts_label_en-US" xlink:label="lab_ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current provision for decommissioning, restoration and rehabilitation costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:to="lab_ifrs-full_LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset_019e4af5-e246-7b10-bf30-a44fd6441503_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance finance income/(expenses)</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through incurred claims and other incurred insurance service expenses, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughIncurredClaimsAndOtherIncurredInsuranceServiceExpensesInsuranceContractsLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Assets_019e4af5-e2ed-7a16-939d-644f6b2ebfda_totalLabel_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_ifrs-full_Assets_019e4af5-e2ed-7cd0-8c1b-53f259b417cb_verboseLabel_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_ifrs-full_Assets_label_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Assets" xlink:to="lab_ifrs-full_Assets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContractAssets_019e4af5-e245-772b-a95d-7a5430f97f65_terseLabel_en-US" xlink:label="lab_ifrs-full_ContractAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts due from customers&#160;&#8211;&#160;work in progress</link:label>
    <link:label id="lab_ifrs-full_ContractAssets_label_en-US" xlink:label="lab_ifrs-full_ContractAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContractAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContractAssets" xlink:to="lab_ifrs-full_ContractAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets_019e4af5-e2ed-7a4f-9a5b-959687308135_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation and other</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss on exchange differences, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets" xlink:to="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_019e4af5-e246-7ab7-8c85-1b2e8f27aa23_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts and other receivable</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment_019e4af5-e245-7c8f-871e-fe52d0f9a471_terseLabel_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remaining capacity available on the commitment</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment_label_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Equity Security Subscription Under Remaining Capacity Available On Commitment</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment_documentation_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preferred Equity Security Subscription Under Remaining Capacity Available On Commitment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment" xlink:href="bbu-20260630.xsd#bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment" xlink:to="lab_bbu_PreferredEquitySecuritySubscriptionUnderRemainingCapacityAvailableOnCommitment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssets_019e4af5-e246-741b-81da-a45bd3deb02e_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial assets</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssets_019e4af5-e246-70f2-986b-528f34fc84e3_totalLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Financial Assets</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialAssets" xlink:to="lab_ifrs-full_DerivativeFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_019f9326-0bca-7784-95e8-12dba1ba682b_terseLabel_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_label_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EquityMethodInvesteeNameDomain" xlink:to="lab_srt_EquityMethodInvesteeNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_019e4af5-e2ec-7898-a9ba-307d30bbd58b_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to ordinary equity holders of parent entity, used in calculating basic earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:to="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions_019e4af5-e246-78bd-827d-07eb10125930_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts and other receivable, net</link:label>
    <link:label id="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts receivable, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsReceivableRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:to="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember_019e4af5-e245-75b5-8c2d-140d4ef35db3_terseLabel_en-US" xlink:label="lab_ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goods and services provided at a point in time</link:label>
    <link:label id="lab_ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember_label_en-US" xlink:label="lab_ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goods or services transferred at point in time [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember" xlink:to="lab_ifrs-full_GoodsOrServicesTransferredAtPointInTimeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalsAccountsReceivable_019e4af5-e2ec-7ff5-9e6c-d8df3d87b603_terseLabel_en-US" xlink:label="lab_bbu_DisposalsAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable derecognized</link:label>
    <link:label id="lab_bbu_DisposalsAccountsReceivable_label_en-US" xlink:label="lab_bbu_DisposalsAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, Accounts Receivable</link:label>
    <link:label id="lab_bbu_DisposalsAccountsReceivable_documentation_en-US" xlink:label="lab_bbu_DisposalsAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposals, Accounts Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalsAccountsReceivable" xlink:href="bbu-20260630.xsd#bbu_DisposalsAccountsReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalsAccountsReceivable" xlink:to="lab_bbu_DisposalsAccountsReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesAxis_019e4af5-e245-715b-9d46-5bb776af82d2_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of interest rates [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of interest rates [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfInterestRatesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInterestRatesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesAxis" xlink:to="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_VariableRate1Domain_019e4af5-e2ec-787c-b4f1-1caf3530587d_terseLabel_en-US" xlink:label="lab_bbu_VariableRate1Domain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Rate [Domain]</link:label>
    <link:label id="lab_bbu_VariableRate1Domain_label_en-US" xlink:label="lab_bbu_VariableRate1Domain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Rate 1 [Domain]</link:label>
    <link:label id="lab_bbu_VariableRate1Domain_documentation_en-US" xlink:label="lab_bbu_VariableRate1Domain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Domain] for Variable Rate [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_VariableRate1Domain" xlink:href="bbu-20260630.xsd#bbu_VariableRate1Domain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_VariableRate1Domain" xlink:to="lab_bbu_VariableRate1Domain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock_019e4af5-e2ed-70b2-96ea-07b2fb305c3a_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)</link:label>
    <link:label id="lab_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Accumulated Other Comprehensive Income (Loss) [Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Accumulated Other Comprehensive Income (Loss) [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock" xlink:to="lab_bbu_DisclosureOfAccumulatedOtherComprehensiveIncomeLossTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Revenue_019e4af5-e2ec-76ff-88bf-f21ded527a88_terseLabel_en-US" xlink:label="lab_ifrs-full_Revenue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenues</link:label>
    <link:label id="lab_ifrs-full_Revenue_019e4af5-e2ec-7c88-9893-78696aec2605_totalLabel_en-US" xlink:label="lab_ifrs-full_Revenue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total revenues</link:label>
    <link:label id="lab_ifrs-full_Revenue_label_en-US" xlink:label="lab_ifrs-full_Revenue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Revenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Revenue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Revenue" xlink:to="lab_ifrs-full_Revenue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable_019e4af5-e2ec-74ce-a339-30c73c466d57_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent_019f1d04-72bc-7bd9-9419-04ba18ef82e6_terseLabel_en-US" xlink:label="lab_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Private equity fund, redemption of units held, percent</link:label>
    <link:label id="lab_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent_label_en-US" xlink:label="lab_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Private Equity Fund, Redemption Of Units Held, Percent</link:label>
    <link:label id="lab_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent_documentation_en-US" xlink:label="lab_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Private Equity Fund, Redemption Of Units Held, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent" xlink:href="bbu-20260630.xsd#bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent" xlink:to="lab_bbu_PrivateEquityFundRedemptionOfUnitsHeldPercent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBorrowingsExplanatory_019e4af5-e246-7d5f-b989-1f598efb0141_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BORROWINGS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBorrowingsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of borrowings [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssuedCapitalMember_019e4af5-e2ec-7a34-8c45-ad79fe417f46_terseLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital</link:label>
    <link:label id="lab_ifrs-full_IssuedCapitalMember_label_en-US" xlink:label="lab_ifrs-full_IssuedCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued capital [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuedCapitalMember" xlink:to="lab_ifrs-full_IssuedCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GeographicalAreasAxis_019e4af5-e245-75c3-affd-7f45405eb4fa_terseLabel_en-US" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical areas [axis]</link:label>
    <link:label id="lab_ifrs-full_GeographicalAreasAxis_label_en-US" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical areas [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasAxis" xlink:to="lab_ifrs-full_GeographicalAreasAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShorttermBorrowings_019e4af5-e2ed-7180-b4e4-e8f0e0c78903_terseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current borrowings</link:label>
    <link:label id="lab_ifrs-full_ShorttermBorrowings_label_en-US" xlink:label="lab_ifrs-full_ShorttermBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermBorrowings" xlink:to="lab_ifrs-full_ShorttermBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BusinessCombinationAbstract_019e4af5-e2ec-7f8c-bf9e-9af6a7804cf1_terseLabel_en-US" xlink:label="lab_bbu_BusinessCombinationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Combinations 1 [Abstract]</link:label>
    <link:label id="lab_bbu_BusinessCombinationAbstract_label_en-US" xlink:label="lab_bbu_BusinessCombinationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination [Abstract]</link:label>
    <link:label id="lab_bbu_BusinessCombinationAbstract_documentation_en-US" xlink:label="lab_bbu_BusinessCombinationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Business Combination</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BusinessCombinationAbstract" xlink:href="bbu-20260630.xsd#bbu_BusinessCombinationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BusinessCombinationAbstract" xlink:to="lab_bbu_BusinessCombinationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InsuranceContractsByComponentsDomain_019e4af5-e2ed-762b-a993-cfdb1e25d642_terseLabel_en-US" xlink:label="lab_ifrs-full_InsuranceContractsByComponentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance contracts by components</link:label>
    <link:label id="lab_ifrs-full_InsuranceContractsByComponentsDomain_label_en-US" xlink:label="lab_ifrs-full_InsuranceContractsByComponentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance contracts by components [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InsuranceContractsByComponentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InsuranceContractsByComponentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InsuranceContractsByComponentsDomain" xlink:to="lab_ifrs-full_InsuranceContractsByComponentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OptionContractMember_019e4af5-e2ec-70df-ad8b-fa3fb379e802_terseLabel_en-US" xlink:label="lab_ifrs-full_OptionContractMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency option contracts</link:label>
    <link:label id="lab_ifrs-full_OptionContractMember_label_en-US" xlink:label="lab_ifrs-full_OptionContractMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Option contract [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OptionContractMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OptionContractMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OptionContractMember" xlink:to="lab_ifrs-full_OptionContractMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock_019e4af5-e2ec-73a0-a6fc-193faa467d9e_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of change in equity investments</link:label>
    <link:label id="lab_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Change In Equity Investments [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Change In Equity Investments [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock" xlink:to="lab_bbu_DisclosureOfChangeInEquityInvestmentsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentLeaseLiabilities_019e4af5-e246-7c9a-8908-f3131480bcad_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_NoncurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLeaseLiabilities" xlink:to="lab_ifrs-full_NoncurrentLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_019e4af5-e2ec-7502-853e-bb1a78fde310_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CONTRACTS IN PROGRESS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of revenue from contracts with customers [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:to="lab_ifrs-full_DisclosureOfRevenueFromContractsWithCustomersExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ConversionOfExchangeableShares_019e4af5-e2ed-743f-b2c0-0439bd7d4d5f_terseLabel_en-US" xlink:label="lab_bbu_ConversionOfExchangeableShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Conversion from BBUC exchangeable shares (in shares)</link:label>
    <link:label id="lab_bbu_ConversionOfExchangeableShares_label_en-US" xlink:label="lab_bbu_ConversionOfExchangeableShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Conversion Of Exchangeable Shares</link:label>
    <link:label id="lab_bbu_ConversionOfExchangeableShares_documentation_en-US" xlink:label="lab_bbu_ConversionOfExchangeableShares" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Conversion Of Exchangeable Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ConversionOfExchangeableShares" xlink:href="bbu-20260630.xsd#bbu_ConversionOfExchangeableShares"/>
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    <link:label id="lab_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock_019e4af5-e246-73b3-8228-52eacd15ee23_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of accounts payable and other</link:label>
    <link:label id="lab_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Accounts Payable And Other Liabilities [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Accounts Payable And Other Liabilities [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock" xlink:to="lab_bbu_DisclosureOfAccountsPayableAndOtherLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_019e4af5-e246-79f6-8751-deeaed65ea1a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Assets And Liabilities Classified as Held for Sale</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of non-current assets or disposal groups classified as held for sale [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_019e4af5-e246-7b5f-a831-9ada0d0e7ef7_terseLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_019e4af5-e246-7268-a882-3d632abc89df_periodStartLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_019e4af5-e246-7871-8d2b-ab0b478d3b61_periodEndLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentDerivativeFinancialLiabilities_019e4af5-e245-7abb-a964-cda749fa76ab_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current financial liability</link:label>
    <link:label id="lab_ifrs-full_NoncurrentDerivativeFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current derivative financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:to="lab_ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_019e4af5-e2ec-78d5-bd72-62f668335be9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentPayablesAbstract_019e4af5-e246-7a92-96da-9e39b7605cc5_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentPayablesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current</link:label>
    <link:label id="lab_ifrs-full_NoncurrentPayablesAbstract_label_en-US" xlink:label="lab_ifrs-full_NoncurrentPayablesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other non-current payables [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentPayablesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentPayablesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentPayablesAbstract" xlink:to="lab_ifrs-full_NoncurrentPayablesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_EquityInFosberMember_019f9326-0bca-724d-83bd-bc82bfe6725b_terseLabel_en-US" xlink:label="lab_bbu_EquityInFosberMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity in Fosber</link:label>
    <link:label id="lab_bbu_EquityInFosberMember_label_en-US" xlink:label="lab_bbu_EquityInFosberMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity in Fosber [Member]</link:label>
    <link:label id="lab_bbu_EquityInFosberMember_documentation_en-US" xlink:label="lab_bbu_EquityInFosberMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity in Fosber</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_EquityInFosberMember" xlink:href="bbu-20260630.xsd#bbu_EquityInFosberMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_EquityInFosberMember" xlink:to="lab_bbu_EquityInFosberMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_019e4af5-e2ec-743f-92cc-8fd76ed85914_negatedLabel_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Dispositions</link:label>
    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_019e4af5-e246-73d5-9dd9-04a7e43e65c4_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets reclassified as held for sale (3)</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through transfers, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember_019e4af5-e245-7b07-8b53-88f2f8fa27e3_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated other comprehensive income (loss)</link:label>
    <link:label id="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember_019e4af5-e245-7470-aaae-9d33b9f80544_verboseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated other comprehensive income (loss)</link:label>
    <link:label id="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember_label_en-US" xlink:label="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated other comprehensive income [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:to="lab_ifrs-full_AccumulatedOtherComprehensiveIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized_019e4af5-e245-7975-a088-27f93b1c6bdb_terseLabel_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain (loss) on dispositions, net</link:label>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized_label_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Disposals Of Non-Current Assets, Unrealized</link:label>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized_documentation_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Disposals Of Non-Current Assets, Unrealized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized" xlink:href="bbu-20260630.xsd#bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized" xlink:to="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsUnrealized" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentsDomain_019e4af5-e2ec-7926-8911-7ac517e2d45d_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments</link:label>
    <link:label id="lab_ifrs-full_SegmentsDomain_label_en-US" xlink:label="lab_ifrs-full_SegmentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsDomain" xlink:to="lab_ifrs-full_SegmentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_FinancialInstrumentsAbstract_019e4af5-e245-7bc6-846d-5010687b3f3c_terseLabel_en-US" xlink:label="lab_bbu_FinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Instruments [Abstract]</link:label>
    <link:label id="lab_bbu_FinancialInstrumentsAbstract_label_en-US" xlink:label="lab_bbu_FinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instruments [Abstract]</link:label>
    <link:label id="lab_bbu_FinancialInstrumentsAbstract_documentation_en-US" xlink:label="lab_bbu_FinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Instruments [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_FinancialInstrumentsAbstract" xlink:href="bbu-20260630.xsd#bbu_FinancialInstrumentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_FinancialInstrumentsAbstract" xlink:to="lab_bbu_FinancialInstrumentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_019e4af5-e246-75e7-81d8-7764bb355182_terseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_019e4af5-e246-7042-9d32-f18fa1af5425_periodStartLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance, beginning of year</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_019e4af5-e246-74e7-a981-9a3eb688a610_periodEndLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance, end of period</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalents" xlink:to="lab_ifrs-full_CashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnallocatedAmountsMember_019e4af5-e245-7ff2-b2ff-4e7adeeee363_terseLabel_en-US" xlink:label="lab_ifrs-full_UnallocatedAmountsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unallocated amounts</link:label>
    <link:label id="lab_ifrs-full_UnallocatedAmountsMember_label_en-US" xlink:label="lab_ifrs-full_UnallocatedAmountsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unallocated amounts [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnallocatedAmountsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnallocatedAmountsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnallocatedAmountsMember" xlink:to="lab_ifrs-full_UnallocatedAmountsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalsPropertyPlantAndEquipment_019e4af5-e246-743f-bc93-5b518e8428a6_negatedLabel_en-US" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Dispositions</link:label>
    <link:label id="lab_ifrs-full_DisposalsPropertyPlantAndEquipment_019e4af5-e246-70aa-8e84-3a297fb18189_terseLabel_en-US" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment derecognized</link:label>
    <link:label id="lab_ifrs-full_DisposalsPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_019e4af5-e246-74ac-abe7-b16c4c25e2cf_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DevelopedTechnologyAndSoftwareMember_019e4af5-e245-71de-bd71-12a6440f5b20_terseLabel_en-US" xlink:label="lab_bbu_DevelopedTechnologyAndSoftwareMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Developed Technology and Software</link:label>
    <link:label id="lab_bbu_DevelopedTechnologyAndSoftwareMember_label_en-US" xlink:label="lab_bbu_DevelopedTechnologyAndSoftwareMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Developed Technology And Software [Member]</link:label>
    <link:label id="lab_bbu_DevelopedTechnologyAndSoftwareMember_documentation_en-US" xlink:label="lab_bbu_DevelopedTechnologyAndSoftwareMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Developed Technology And Software</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DevelopedTechnologyAndSoftwareMember" xlink:href="bbu-20260630.xsd#bbu_DevelopedTechnologyAndSoftwareMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DevelopedTechnologyAndSoftwareMember" xlink:to="lab_bbu_DevelopedTechnologyAndSoftwareMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAbstract_019e4af5-e2ec-7635-bb4e-914b4c1f77d4_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_ifrs-full_AssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="lab_ifrs-full_AssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_RevenueExcludingRevenueFromContractsWithCustomers_019e4af5-e245-7a75-b491-7ef2d718ab29_verboseLabel_en-US" xlink:label="lab_bbu_RevenueExcludingRevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other revenues</link:label>
    <link:label id="lab_bbu_RevenueExcludingRevenueFromContractsWithCustomers_label_en-US" xlink:label="lab_bbu_RevenueExcludingRevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Excluding Revenue From Contracts With Customers</link:label>
    <link:label id="lab_bbu_RevenueExcludingRevenueFromContractsWithCustomers_documentation_en-US" xlink:label="lab_bbu_RevenueExcludingRevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue, Excluding Revenue From Contracts With Customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_RevenueExcludingRevenueFromContractsWithCustomers" xlink:href="bbu-20260630.xsd#bbu_RevenueExcludingRevenueFromContractsWithCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_RevenueExcludingRevenueFromContractsWithCustomers" xlink:to="lab_bbu_RevenueExcludingRevenueFromContractsWithCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember_019e4af5-e2ed-7db0-962b-09df20bb7f6f_terseLabel_en-US" xlink:label="lab_ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimates of present value of future cash flows</link:label>
    <link:label id="lab_ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember_label_en-US" xlink:label="lab_ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Estimates of present value of future cash flows [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember" xlink:to="lab_ifrs-full_EstimatesOfPresentValueOfFutureCashFlowsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_019e4af5-e2ec-751f-9c18-abbb323b81c0_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of transactions between related parties</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAndLiabilities_019e4af5-e245-75e5-8b8f-89ddb5b9f856_totalLabel_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity and liabilities</link:label>
    <link:label id="lab_ifrs-full_EquityAndLiabilities_label_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity and liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAndLiabilities" xlink:to="lab_ifrs-full_EquityAndLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_country_US_019e4af5-e2ed-7ee2-a10a-bb141e0bbdbc_terseLabel_en-US" xlink:label="lab_country_US" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">United States</link:label>
    <link:label id="lab_country_US_label_en-US" xlink:label="lab_country_US" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED STATES</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_US" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_US" xlink:to="lab_country_US" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentAbstract_019e4af5-e246-7fc6-bb20-22ed91d4a88a_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment [abstract]</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentAbstract_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner_019e4af5-e246-7bb4-8e86-e7a55e6e7b4e_terseLabel_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class A shareholders</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner_label_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Limited Partner</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner_documentation_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Limited Partner</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner" xlink:href="bbu-20260630.xsd#bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner" xlink:to="lab_bbu_ComprehensiveIncomeLossPortionAttributableToLimitedPartner" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember_019e4af5-e2ec-74cd-9f4a-169979ca1f2d_terseLabel_en-US" xlink:label="lab_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ownership changes</link:label>
    <link:label id="lab_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember_label_en-US" xlink:label="lab_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Changes In Ownership Interests Of Consolidated Subsidiaries [Member]</link:label>
    <link:label id="lab_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember_documentation_en-US" xlink:label="lab_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Changes In Ownership Interests Of Consolidated Subsidiaries [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember" xlink:href="bbu-20260630.xsd#bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember" xlink:to="lab_bbu_ChangesInOwnershipInterestsOfConsolidatedSubsidiariesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BusinessCombinationsAxis_019e4af5-e246-76e2-8824-0b5a8f6d973f_terseLabel_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combinations [axis]</link:label>
    <link:label id="lab_ifrs-full_BusinessCombinationsAxis_label_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business combinations [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsAxis" xlink:to="lab_ifrs-full_BusinessCombinationsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_EFOAccountedForUsingEquityMethod_019e4af5-e246-7991-a239-0d63205d3cea_terseLabel_en-US" xlink:label="lab_bbu_EFOAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity accounted Adjusted EFO</link:label>
    <link:label id="lab_bbu_EFOAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_bbu_EFOAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EFO Accounted For Using Equity Method</link:label>
    <link:label id="lab_bbu_EFOAccountedForUsingEquityMethod_documentation_en-US" xlink:label="lab_bbu_EFOAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">EFO Accounted For Using Equity Method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_EFOAccountedForUsingEquityMethod" xlink:href="bbu-20260630.xsd#bbu_EFOAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_EFOAccountedForUsingEquityMethod" xlink:to="lab_bbu_EFOAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue_019e4af5-e245-771a-bb76-a4b3f1decc7e_terseLabel_en-US" xlink:label="lab_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cumulative preferencial cash dividend as a percentage of redemption value</link:label>
    <link:label id="lab_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue_label_en-US" xlink:label="lab_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference Shares Subscription, Cumulative Preferencial Cash Dividend, Percentage Of Redemption Value</link:label>
    <link:label id="lab_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue_documentation_en-US" xlink:label="lab_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preference Shares Subscription, Cumulative Preferencial Cash Dividend, Percentage Of Redemption Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue" xlink:href="bbu-20260630.xsd#bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue" xlink:to="lab_bbu_PreferenceSharesSubscriptionCumulativePreferencialCashDividendPercentageOfRedemptionValue" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_RealizedGainLossOnOffshoreServiceUpgrades_019f9c2c-a774-7d39-85d5-0c9fd1fd5eb1_terseLabel_en-US" xlink:label="lab_bbu_RealizedGainLossOnOffshoreServiceUpgrades" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Realized gain on offshore service upgrades</link:label>
    <link:label id="lab_bbu_RealizedGainLossOnOffshoreServiceUpgrades_label_en-US" xlink:label="lab_bbu_RealizedGainLossOnOffshoreServiceUpgrades" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Realized Gain (Loss) On Offshore Service Upgrades</link:label>
    <link:label id="lab_bbu_RealizedGainLossOnOffshoreServiceUpgrades_documentation_en-US" xlink:label="lab_bbu_RealizedGainLossOnOffshoreServiceUpgrades" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Realized Gain (Loss) On Offshore Service Upgrades</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_RealizedGainLossOnOffshoreServiceUpgrades" xlink:href="bbu-20260630.xsd#bbu_RealizedGainLossOnOffshoreServiceUpgrades"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_RealizedGainLossOnOffshoreServiceUpgrades" xlink:to="lab_bbu_RealizedGainLossOnOffshoreServiceUpgrades" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BusinessCombinationsDomain_019e4af5-e2ed-7890-b771-9bf6b58f46b5_terseLabel_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combinations [domain]</link:label>
    <link:label id="lab_ifrs-full_BusinessCombinationsDomain_label_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business combinations [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsDomain" xlink:to="lab_ifrs-full_BusinessCombinationsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentAssetsAbstract_019e4af5-e2ed-7f12-9382-1d4a0527bf4e_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Assets</link:label>
    <link:label id="lab_ifrs-full_CurrentAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_CurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAssetsAbstract" xlink:to="lab_ifrs-full_CurrentAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ConcessionConstructionMaterialsAndLaborCosts_019e4af5-e2ed-7fb6-9842-9abfcdf16bf5_terseLabel_en-US" xlink:label="lab_bbu_ConcessionConstructionMaterialsAndLaborCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Concession construction materials and labor costs</link:label>
    <link:label id="lab_bbu_ConcessionConstructionMaterialsAndLaborCosts_label_en-US" xlink:label="lab_bbu_ConcessionConstructionMaterialsAndLaborCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concession Construction Materials And Labor Costs</link:label>
    <link:label id="lab_bbu_ConcessionConstructionMaterialsAndLaborCosts_documentation_en-US" xlink:label="lab_bbu_ConcessionConstructionMaterialsAndLaborCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Concession Construction Materials And Labor Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ConcessionConstructionMaterialsAndLaborCosts" xlink:href="bbu-20260630.xsd#bbu_ConcessionConstructionMaterialsAndLaborCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ConcessionConstructionMaterialsAndLaborCosts" xlink:to="lab_bbu_ConcessionConstructionMaterialsAndLaborCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_IssuanceOfSpecialShares_019f9334-0a32-7d6f-8faa-c1a032c44314_netLabel_en-US" xlink:label="lab_bbu_IssuanceOfSpecialShares" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Issuance of Class A Shares</link:label>
    <link:label id="lab_bbu_IssuanceOfSpecialShares_019f1e37-edb7-7e39-b5a2-c478c1a40878_terseLabel_en-US" xlink:label="lab_bbu_IssuanceOfSpecialShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance of Special Shares</link:label>
    <link:label id="lab_bbu_IssuanceOfSpecialShares_label_en-US" xlink:label="lab_bbu_IssuanceOfSpecialShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issuance of Special Shares</link:label>
    <link:label id="lab_bbu_IssuanceOfSpecialShares_documentation_en-US" xlink:label="lab_bbu_IssuanceOfSpecialShares" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Issuance of Special Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IssuanceOfSpecialShares" xlink:href="bbu-20260630.xsd#bbu_IssuanceOfSpecialShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_IssuanceOfSpecialShares" xlink:to="lab_bbu_IssuanceOfSpecialShares" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SpecialSharesHeldByBrookfieldMember_019f9c1f-0e32-709d-91c6-fc72aef1b38a_terseLabel_en-US" xlink:label="lab_bbu_SpecialSharesHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Special Shares Held By Brookfield</link:label>
    <link:label id="lab_bbu_SpecialSharesHeldByBrookfieldMember_label_en-US" xlink:label="lab_bbu_SpecialSharesHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special Shares Held By Brookfield [Member]</link:label>
    <link:label id="lab_bbu_SpecialSharesHeldByBrookfieldMember_documentation_en-US" xlink:label="lab_bbu_SpecialSharesHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Special Shares Held By Brookfield</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SpecialSharesHeldByBrookfieldMember" xlink:href="bbu-20260630.xsd#bbu_SpecialSharesHeldByBrookfieldMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SpecialSharesHeldByBrookfieldMember" xlink:to="lab_bbu_SpecialSharesHeldByBrookfieldMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueAbstract_019e4af5-e245-785a-9b30-abfe169f95fc_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue [abstract]</link:label>
    <link:label id="lab_ifrs-full_RevenueAbstract_label_en-US" xlink:label="lab_ifrs-full_RevenueAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueAbstract" xlink:to="lab_ifrs-full_RevenueAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentAssetsAbstract_019e4af5-e2ec-734c-bc20-ad008df458ca_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-Current Assets</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssetsAbstract" xlink:to="lab_ifrs-full_NoncurrentAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems_019e4af5-e245-7c61-8281-6b08653a7542_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [line items]</link:label>
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    <link:label id="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions_019e4af5-e245-7109-afc8-1fbde65cb144_terseLabel_en-US" xlink:label="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Outstanding commitments made by entity, related party transactions</link:label>
    <link:label id="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outstanding commitments made by entity, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:to="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019e4af5-e2ec-724f-a036-7152418f8a04_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, assets [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod_019e4af5-e2ec-70be-b7f4-3ca8e77cf899_terseLabel_en-US" xlink:label="lab_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory costs</link:label>
    <link:label id="lab_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod_label_en-US" xlink:label="lab_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of inventories recognised as expense during period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:to="lab_ifrs-full_CostOfInventoriesRecognisedAsExpenseDuringPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductsAndServicesDomain_019f1cd5-62c4-7539-8c8d-cdffdbb5c636_terseLabel_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:label id="lab_srt_ProductsAndServicesDomain_label_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductsAndServicesDomain" xlink:to="lab_srt_ProductsAndServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent_019f1d04-72bc-72a7-b72c-f6c0dcbc0e01_terseLabel_en-US" xlink:label="lab_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale of business interest, discount on net asset value, percent</link:label>
    <link:label id="lab_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent_label_en-US" xlink:label="lab_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale Of Business Interest, Discount On Net Asset Value, Percent</link:label>
    <link:label id="lab_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent_documentation_en-US" xlink:label="lab_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale Of Business Interest, Discount On Net Asset Value, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent" xlink:href="bbu-20260630.xsd#bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent" xlink:to="lab_bbu_SaleOfBusinessInterestDiscountOnNetAssetValuePercent" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherGeographicAreasMember_019e4af5-e2ed-7a52-b7f7-5e9800dbd422_terseLabel_en-US" xlink:label="lab_bbu_OtherGeographicAreasMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbu_OtherGeographicAreasMember_label_en-US" xlink:label="lab_bbu_OtherGeographicAreasMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Geographic Areas [Member]</link:label>
    <link:label id="lab_bbu_OtherGeographicAreasMember_documentation_en-US" xlink:label="lab_bbu_OtherGeographicAreasMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Geographic Areas [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherGeographicAreasMember" xlink:href="bbu-20260630.xsd#bbu_OtherGeographicAreasMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OtherGeographicAreasMember" xlink:to="lab_bbu_OtherGeographicAreasMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019e4af5-e2ec-7f1f-a5d1-413f7add8a13_terseLabel_en-US" xlink:label="lab_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FVOCI</link:label>
    <link:label id="lab_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember_label_en-US" xlink:label="lab_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Fair Value Through Other Comprehensive Income, Category [Member]</link:label>
    <link:label id="lab_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember_documentation_en-US" xlink:label="lab_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Fair Value Through Other Comprehensive Income, Category [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:href="bbu-20260630.xsd#bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:to="lab_bbu_FinancialLiabilitiesAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract_019e4af5-e2ed-78a2-88ff-d451d24f0848_terseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Items that will not be reclassified subsequently to profit or loss:</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract" xlink:to="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract_019e4af5-e246-7012-9645-5ebff4f51817_terseLabel_en-US" xlink:label="lab_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets And Liabilities Classified As Held For Sale [Abstract]</link:label>
    <link:label id="lab_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract_label_en-US" xlink:label="lab_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets And Liabilities Classified As Held For Sale [Abstract]</link:label>
    <link:label id="lab_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract_documentation_en-US" xlink:label="lab_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Assets And Liabilities Classified As Held For Sale [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract" xlink:href="bbu-20260630.xsd#bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract" xlink:to="lab_bbu_AssetsAndLiabilitiesClassifiedAsHeldForSaleAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory_019e4af5-e246-7e7a-9ef8-11f679fac89e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of detailed information about hedging instruments</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory"/>
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    <link:label id="lab_ifrs-full_MiscellaneousOtherReservesMember_019e4af5-e245-705e-a6d6-d27024c9224c_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherReservesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousOtherReservesMember_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherReservesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous other reserves [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousOtherReservesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherReservesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousOtherReservesMember" xlink:to="lab_ifrs-full_MiscellaneousOtherReservesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ClassASharesMember_019f1e28-7728-7e22-a836-0a54c8974dd4_terseLabel_en-US" xlink:label="lab_bbu_ClassASharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class A shares</link:label>
    <link:label id="lab_bbu_ClassASharesMember_label_en-US" xlink:label="lab_bbu_ClassASharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class A Shares [Member]</link:label>
    <link:label id="lab_bbu_ClassASharesMember_documentation_en-US" xlink:label="lab_bbu_ClassASharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class A Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ClassASharesMember" xlink:href="bbu-20260630.xsd#bbu_ClassASharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ClassASharesMember" xlink:to="lab_bbu_ClassASharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1_019e4af5-e2ed-718c-b680-25503bbba3f2_terseLabel_en-US" xlink:label="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Units repurchased and canceled (in shares)</link:label>
    <link:label id="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1_019e4af5-e2ed-75a8-910d-f36c44ceff11_negatedTerseLabel_en-US" xlink:label="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repurchased and canceled (in shares)</link:label>
    <link:label id="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1_label_en-US" xlink:label="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Repurchased And Retired During Period, Shares 1</link:label>
    <link:label id="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1_documentation_en-US" xlink:label="lab_bbu_StockRepurchasedAndRetiredDuringPeriodShares1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stock Repurchased and Retired During Period, Shares 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_StockRepurchasedAndRetiredDuringPeriodShares1" xlink:href="bbu-20260630.xsd#bbu_StockRepurchasedAndRetiredDuringPeriodShares1"/>
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    <link:label id="lab_bbu_InvestmentsAccountedForUsingEquityMethodRollForward_019e4af5-e246-7280-8c87-5487aaf62f6a_terseLabel_en-US" xlink:label="lab_bbu_InvestmentsAccountedForUsingEquityMethodRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments accounted for using equity method [Roll Forward]</link:label>
    <link:label id="lab_bbu_InvestmentsAccountedForUsingEquityMethodRollForward_label_en-US" xlink:label="lab_bbu_InvestmentsAccountedForUsingEquityMethodRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments Accounted For Using Equity Method [Roll Forward]</link:label>
    <link:label id="lab_bbu_InvestmentsAccountedForUsingEquityMethodRollForward_documentation_en-US" xlink:label="lab_bbu_InvestmentsAccountedForUsingEquityMethodRollForward" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investments Accounted For Using Equity Method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_InvestmentsAccountedForUsingEquityMethodRollForward" xlink:href="bbu-20260630.xsd#bbu_InvestmentsAccountedForUsingEquityMethodRollForward"/>
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    <link:label id="lab_ifrs-full_NoncurrentReceivablesFromContractsWithCustomers_019e4af5-e2ec-7d2c-9c3d-77c07447a98a_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivablesFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retainer on customer contract</link:label>
    <link:label id="lab_ifrs-full_NoncurrentReceivablesFromContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivablesFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current receivables from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentReceivablesFromContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivablesFromContractsWithCustomers"/>
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    <link:label id="lab_ifrs-full_Cash_019e4af5-e246-740e-b0b6-d6764e146b33_terseLabel_en-US" xlink:label="lab_ifrs-full_Cash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash</link:label>
    <link:label id="lab_ifrs-full_Cash_label_en-US" xlink:label="lab_ifrs-full_Cash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Cash" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Cash"/>
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    <link:label id="lab_ifrs-full_EquityInvestmentsMember_019e4af5-e2ec-7c6d-86d4-dd8872c45b5b_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common shares</link:label>
    <link:label id="lab_ifrs-full_EquityInvestmentsMember_label_en-US" xlink:label="lab_ifrs-full_EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity investments [member]</link:label>
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    <link:label id="lab_ifrs-full_InsuranceServiceExpensesFromInsuranceContractsIssued_019e4af5-e2ec-731d-83bd-ac8d2bb3ae05_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_InsuranceServiceExpensesFromInsuranceContractsIssued" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Claims and other insurance service expenses paid</link:label>
    <link:label id="lab_ifrs-full_InsuranceServiceExpensesFromInsuranceContractsIssued_label_en-US" xlink:label="lab_ifrs-full_InsuranceServiceExpensesFromInsuranceContractsIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance service expenses from insurance contracts issued</link:label>
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    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_019e4af5-e245-7497-abc7-5b981cacebb1_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investing Activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract"/>
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    <link:label id="lab_ifrs-full_AdjustmentsForDeferredTaxExpense_019e4af5-e246-7639-a560-b01fb4716b6d_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDeferredTaxExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income tax expense (recovery)</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDeferredTaxExpense_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDeferredTaxExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for deferred tax expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDeferredTaxExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDeferredTaxExpense"/>
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    <link:label id="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory_019e4af5-e245-71b9-84b7-dc8c9911c193_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">RELATED PARTY TRANSACTIONS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of related party [text block]</link:label>
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    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsDomain_019e4af5-e2ed-7f42-bb69-ccaf4e9bd9a4_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial assets [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial assets [domain]</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_019e4af5-e2ec-767e-8d3f-cdf13a151789_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">INTANGIBLE ASSETS</link:label>
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    <link:label id="lab_bbu_OperatingResultsDirectOperatingCosts_documentation_en-US" xlink:label="lab_bbu_OperatingResultsDirectOperatingCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating Results, Direct Operating Costs</link:label>
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    <link:label id="lab_ifrs-full_InterestRateSwapContractMember_019e4af5-e2ec-7237-8dc6-84fd8180d767_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRateSwapContractMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate derivatives</link:label>
    <link:label id="lab_ifrs-full_InterestRateSwapContractMember_label_en-US" xlink:label="lab_ifrs-full_InterestRateSwapContractMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest rate swap contract [member]</link:label>
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    <link:label id="lab_bbu_OtherFinancialAssetsDebtInstrumentsAtFairValueThroughProfitOrLossMember_019e4af5-e2ec-709e-90ff-6b103705f58e_terseLabel_en-US" xlink:label="lab_bbu_OtherFinancialAssetsDebtInstrumentsAtFairValueThroughProfitOrLossMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets, debt instruments at FVTPL</link:label>
    <link:label id="lab_bbu_OtherFinancialAssetsDebtInstrumentsAtFairValueThroughProfitOrLossMember_label_en-US" xlink:label="lab_bbu_OtherFinancialAssetsDebtInstrumentsAtFairValueThroughProfitOrLossMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Assets, Debt Instruments At Fair Value Through Profit Or Loss [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherFinancialAssetsDebtInstrumentsAtFairValueThroughProfitOrLossMember" xlink:href="bbu-20260630.xsd#bbu_OtherFinancialAssetsDebtInstrumentsAtFairValueThroughProfitOrLossMember"/>
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    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable_019e4af5-e2ec-7151-b4d8-02c451cc342e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [table]</link:label>
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    <link:label id="lab_ifrs-full_OtherComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_label_en-US" xlink:label="lab_ifrs-full_OtherComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other components of other comprehensive income that will not be reclassified to profit or loss, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
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    <link:label id="lab_bbu_BBHCNCIBExchangeableSharesMember_019f9c1c-1620-7a8d-a829-688000a0f74a_terseLabel_en-US" xlink:label="lab_bbu_BBHCNCIBExchangeableSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BBHC NCIB Exchangeable Shares</link:label>
    <link:label id="lab_bbu_BBHCNCIBExchangeableSharesMember_label_en-US" xlink:label="lab_bbu_BBHCNCIBExchangeableSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BBHC NCIB Exchangeable Shares [Member]</link:label>
    <link:label id="lab_bbu_BBHCNCIBExchangeableSharesMember_documentation_en-US" xlink:label="lab_bbu_BBHCNCIBExchangeableSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BBHC NCIB Exchangeable Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BBHCNCIBExchangeableSharesMember" xlink:href="bbu-20260630.xsd#bbu_BBHCNCIBExchangeableSharesMember"/>
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    <link:label id="lab_bbu_AdditionsJointVenturesAndAssociates_019e4af5-e245-712c-92d5-0204c2ae25cd_terseLabel_en-US" xlink:label="lab_bbu_AdditionsJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions (cash and non-cash)</link:label>
    <link:label id="lab_bbu_AdditionsJointVenturesAndAssociates_label_en-US" xlink:label="lab_bbu_AdditionsJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions, Joint Ventures And Associates</link:label>
    <link:label id="lab_bbu_AdditionsJointVenturesAndAssociates_documentation_en-US" xlink:label="lab_bbu_AdditionsJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Additions, Joint Ventures And Associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_AdditionsJointVenturesAndAssociates" xlink:href="bbu-20260630.xsd#bbu_AdditionsJointVenturesAndAssociates"/>
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    <link:label id="lab_ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests_019e4af5-e246-721f-9232-82ddd3bed930_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital provided by others who have interests in operating subsidiaries</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests"/>
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    <link:label id="lab_bbu_TransactionCostsRecognisedInProfitOrLoss_019e4af5-e245-75f7-8b2c-dbc32f85d510_terseLabel_en-US" xlink:label="lab_bbu_TransactionCostsRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transaction costs</link:label>
    <link:label id="lab_bbu_TransactionCostsRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_bbu_TransactionCostsRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transaction Costs Recognised In Profit Or Loss</link:label>
    <link:label id="lab_bbu_TransactionCostsRecognisedInProfitOrLoss_documentation_en-US" xlink:label="lab_bbu_TransactionCostsRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Transaction Costs Recognised In Profit Or Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_TransactionCostsRecognisedInProfitOrLoss" xlink:href="bbu-20260630.xsd#bbu_TransactionCostsRecognisedInProfitOrLoss"/>
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    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_019e4af5-e245-72e1-b9c2-5459f32ff729_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations</link:label>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill"/>
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    <link:label id="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_019e4af5-e246-72b7-9f5b-ec53a5ee6063_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Critical accounting judgments and measurement uncertainty</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of accounting judgements and estimates [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory"/>
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    <link:label id="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings_019e4af5-e2ec-76ab-8dbd-0995683025d0_negatedLabel_en-US" xlink:label="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Repayment of corporate borrowings</link:label>
    <link:label id="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings_label_en-US" xlink:label="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of non-current borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfNoncurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfNoncurrentBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfNoncurrentBorrowings" xlink:to="lab_ifrs-full_RepaymentsOfNoncurrentBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GoodwillRecognisedAsOfAcquisitionDate_019e4af5-e246-7a03-9e65-b4d3323e6fed_terseLabel_en-US" xlink:label="lab_ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_GoodwillRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GoodwillRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodwillRecognisedAsOfAcquisitionDate"/>
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    <link:label id="lab_bbu_NetIncomeLossAllocatedToLimitedPartners1_019e4af5-e2ec-7988-af6a-4fb720b43eb1_verboseLabel_en-US" xlink:label="lab_bbu_NetIncomeLossAllocatedToLimitedPartners1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Class A shareholders</link:label>
    <link:label id="lab_bbu_NetIncomeLossAllocatedToLimitedPartners1_label_en-US" xlink:label="lab_bbu_NetIncomeLossAllocatedToLimitedPartners1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Allocated To Limited Partners 1</link:label>
    <link:label id="lab_bbu_NetIncomeLossAllocatedToLimitedPartners1_documentation_en-US" xlink:label="lab_bbu_NetIncomeLossAllocatedToLimitedPartners1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Allocated To Limited Partners 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NetIncomeLossAllocatedToLimitedPartners1" xlink:href="bbu-20260630.xsd#bbu_NetIncomeLossAllocatedToLimitedPartners1"/>
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    <link:label id="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_019e4af5-e2ec-7c35-9443-fab995cf0edc_terseLabel_en-US" xlink:label="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-tax net gain</link:label>
    <link:label id="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_label_en-US" xlink:label="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangeInRiskAdjustmentForNonfinancialRiskThatDoesNotRelateToFutureOrPastServiceInsuranceContractsLiabilityAsset_019e4af5-e2ec-76a2-b523-e55a551f56d5_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangeInRiskAdjustmentForNonfinancialRiskThatDoesNotRelateToFutureOrPastServiceInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change in risk adjustment recognized for the risk expired</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangeInRiskAdjustmentForNonfinancialRiskThatDoesNotRelateToFutureOrPastServiceInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangeInRiskAdjustmentForNonfinancialRiskThatDoesNotRelateToFutureOrPastServiceInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through change in risk adjustment for non-financial risk that does not relate to future or past service, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangeInRiskAdjustmentForNonfinancialRiskThatDoesNotRelateToFutureOrPastServiceInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangeInRiskAdjustmentForNonfinancialRiskThatDoesNotRelateToFutureOrPastServiceInsuranceContractsLiabilityAsset"/>
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    <link:label id="lab_bbu_RevolvingCreditFacility1Member_019e4af5-e2ec-7e4b-809e-9290191bdb13_terseLabel_en-US" xlink:label="lab_bbu_RevolvingCreditFacility1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revolving credit facility</link:label>
    <link:label id="lab_bbu_RevolvingCreditFacility1Member_label_en-US" xlink:label="lab_bbu_RevolvingCreditFacility1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revolving Credit Facility 1 [Member]</link:label>
    <link:label id="lab_bbu_RevolvingCreditFacility1Member_documentation_en-US" xlink:label="lab_bbu_RevolvingCreditFacility1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revolving Credit Facility 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_RevolvingCreditFacility1Member" xlink:href="bbu-20260630.xsd#bbu_RevolvingCreditFacility1Member"/>
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    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable_019e4af5-e246-75b5-b953-361480108ed7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalTable"/>
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    <link:label id="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_019e4af5-e245-7115-9c75-e2da075935ab_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedges of net investment in foreign operations</link:label>
    <link:label id="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_label_en-US" xlink:label="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedges of net investment in foreign operations [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember"/>
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    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019e4af5-e245-7485-9607-7858c5365cba_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract"/>
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    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate_019e4af5-e2ec-79c4-acbd-9af6fdae65d9_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in associate</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in associate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInAssociate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BaseRateOrPrimeRateMember_019e4af5-e2ec-78dc-80a1-fbbc70089e1c_terseLabel_en-US" xlink:label="lab_bbu_BaseRateOrPrimeRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Base rate or prime rate</link:label>
    <link:label id="lab_bbu_BaseRateOrPrimeRateMember_label_en-US" xlink:label="lab_bbu_BaseRateOrPrimeRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Base Rate Or Prime Rate [Member]</link:label>
    <link:label id="lab_bbu_BaseRateOrPrimeRateMember_documentation_en-US" xlink:label="lab_bbu_BaseRateOrPrimeRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Base Rate Or Prime Rate [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BaseRateOrPrimeRateMember" xlink:href="bbu-20260630.xsd#bbu_BaseRateOrPrimeRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BaseRateOrPrimeRateMember" xlink:to="lab_bbu_BaseRateOrPrimeRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsDomain_019e4af5-e246-7802-9ba0-2a3ecb9ddc2a_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment consolidation items [domain]</link:label>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsDomain_label_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment consolidation items [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentConsolidationItemsDomain" xlink:to="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock_019e4af5-e246-7293-90eb-f829cedac33f_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ASSETS AND LIABILITIES CLASSIFIED AS HELD FOR SALE</link:label>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Held For Sale [Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Held For Sale [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock" xlink:to="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment_019f93b0-caf8-7601-8b59-c0e3e58cd26e_terseLabel_en-US" xlink:label="lab_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrealized gain (loss) on reclassification of property, plant and equipment</link:label>
    <link:label id="lab_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment_label_en-US" xlink:label="lab_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unrealized Gain (loss) On Reclassification Of Property, Plant And Equipment</link:label>
    <link:label id="lab_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment_documentation_en-US" xlink:label="lab_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Unrealized Gain (loss) On Reclassification Of Property, Plant And Equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment" xlink:href="bbu-20260630.xsd#bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment" xlink:to="lab_bbu_UnrealizedGainLossOnReclassificationOfPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_019e4af5-e245-76d4-902e-98278716ca3b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACCOUNTS AND OTHER RECEIVABLE, NET</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of trade and other receivables [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory"/>
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    <link:label id="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract_019e4af5-e245-7cae-8f4e-89ab54bdaff4_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in intangible assets other than goodwill [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in intangible assets other than goodwill [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherCurrentFinancialAssets_019e4af5-e2ed-783f-a08b-f0bd3935b080_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherCurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets</link:label>
    <link:label id="lab_ifrs-full_OtherCurrentFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_OtherCurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other current financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherCurrentFinancialAssets" xlink:to="lab_ifrs-full_OtherCurrentFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsTable_019e4af5-e246-7199-bb37-f144591a83b2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in insurance contracts by remaining coverage and incurred claims [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInInsuranceContractsByRemainingCoverageAndIncurredClaimsTable"/>
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    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold_019e4af5-e2ed-7853-9c52-b38b4c4788f3_terseLabel_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends recognised as distributions to owners, volume weighted average share price threshold (in dollars per share)</link:label>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold_label_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Recognised As Distributions To Owners, Volume Weighted Average Share Price Threshold</link:label>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold_documentation_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dividends Recognised As Distributions To Owners, Volume Weighted Average Share Price Threshold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold" xlink:href="bbu-20260630.xsd#bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold" xlink:to="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePriceThreshold" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NonCurrentFinancingReceivables_019e4af5-e2ed-743d-b2ef-d5a26447f223_terseLabel_en-US" xlink:label="lab_bbu_NonCurrentFinancingReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and notes receivable</link:label>
    <link:label id="lab_bbu_NonCurrentFinancingReceivables_label_en-US" xlink:label="lab_bbu_NonCurrentFinancingReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Current Financing Receivables</link:label>
    <link:label id="lab_bbu_NonCurrentFinancingReceivables_documentation_en-US" xlink:label="lab_bbu_NonCurrentFinancingReceivables" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Current Financing Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NonCurrentFinancingReceivables" xlink:href="bbu-20260630.xsd#bbu_NonCurrentFinancingReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NonCurrentFinancingReceivables" xlink:to="lab_bbu_NonCurrentFinancingReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MajorOrdinaryShareTransactionsMember_019e4af5-e245-7feb-a0d4-45b5a5c8c920_terseLabel_en-US" xlink:label="lab_ifrs-full_MajorOrdinaryShareTransactionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Distribution</link:label>
    <link:label id="lab_ifrs-full_MajorOrdinaryShareTransactionsMember_label_en-US" xlink:label="lab_ifrs-full_MajorOrdinaryShareTransactionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major ordinary share transactions [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MajorOrdinaryShareTransactionsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorOrdinaryShareTransactionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorOrdinaryShareTransactionsMember" xlink:to="lab_ifrs-full_MajorOrdinaryShareTransactionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold_019e4af5-e245-7760-a3fd-bbb9dd1c4cfc_terseLabel_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Incentive distribution rights based on percent increase in unit price</link:label>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold_label_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Recognised As Distributions To Owners, Distribution Rights, Percent Increase In Unit Price Over Threshold</link:label>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold_documentation_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dividends Recognised As Distributions To Owners, Distribution Rights, Percent Increase In Unit Price Over Threshold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold" xlink:href="bbu-20260630.xsd#bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold" xlink:to="lab_bbu_DividendsRecognisedAsDistributionsToOwnersDistributionRightsPercentIncreaseInUnitPriceOverThreshold" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems_019e4af5-e246-7805-aad2-15f48654b51a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GoodwillMember_019e4af5-e2ed-7c80-a928-b690bf3b0583_terseLabel_en-US" xlink:label="lab_ifrs-full_GoodwillMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_GoodwillMember_label_en-US" xlink:label="lab_ifrs-full_GoodwillMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GoodwillMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodwillMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GoodwillMember" xlink:to="lab_ifrs-full_GoodwillMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherEquityInterestMember_019e4af5-e2ec-7600-af79-62321d8c7ac4_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherEquityInterestMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest of others in operating subsidiaries</link:label>
    <link:label id="lab_ifrs-full_OtherEquityInterestMember_label_en-US" xlink:label="lab_ifrs-full_OtherEquityInterestMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other equity interest [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquityInterestMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEquityInterestMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherEquityInterestMember" xlink:to="lab_ifrs-full_OtherEquityInterestMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentContractAssets_019e4af5-e245-76ce-9a56-51ff52236fb5_verboseLabel_en-US" xlink:label="lab_ifrs-full_CurrentContractAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Retention balance, current</link:label>
    <link:label id="lab_ifrs-full_CurrentContractAssets_019e4af5-e245-789c-9c71-a263046a23ee_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentContractAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Work in progress</link:label>
    <link:label id="lab_ifrs-full_CurrentContractAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentContractAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current contract assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentContractAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentContractAssets" xlink:to="lab_ifrs-full_CurrentContractAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_019e4af5-e245-7fba-a950-b53cc4bcda2a_terseLabel_en-US" xlink:label="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impact of foreign exchange</link:label>
    <link:label id="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effect of exchange rate changes on cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents"/>
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    <link:label id="lab_bbu_InventoriesAbstract_019e4af5-e246-76ac-9492-8c163e360062_terseLabel_en-US" xlink:label="lab_bbu_InventoriesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventories [Abstract]</link:label>
    <link:label id="lab_bbu_InventoriesAbstract_label_en-US" xlink:label="lab_bbu_InventoriesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventories [Abstract]</link:label>
    <link:label id="lab_bbu_InventoriesAbstract_documentation_en-US" xlink:label="lab_bbu_InventoriesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Inventories [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_InventoriesAbstract" xlink:href="bbu-20260630.xsd#bbu_InventoriesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_InventoriesAbstract" xlink:to="lab_bbu_InventoriesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates_019e4af5-e2ed-7d1e-a214-7336e547189d_terseLabel_en-US" xlink:label="lab_bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation and other</link:label>
    <link:label id="lab_bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates_label_en-US" xlink:label="lab_bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Net Exchange Differences, Joint Ventures And Associates</link:label>
    <link:label id="lab_bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates_documentation_en-US" xlink:label="lab_bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Net Exchange Differences, Joint Ventures And Associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates" xlink:href="bbu-20260630.xsd#bbu_IncreaseDecreaseThroughNetExchangeDifferencesJointVenturesAndAssociates"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceResultInsuranceContractsLiabilityAsset_019e4af5-e2ec-7c74-a639-352b63ff343d_totalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceResultInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) through insurance service result, insurance contracts liability (asset)</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceResultInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceResultInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through insurance service result, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughInsuranceServiceResultInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughInsuranceServiceResultInsuranceContractsLiabilityAsset"/>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_019e4af5-e2ec-740f-8669-6b1fe6f3913f_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash from (used in) operating activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
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    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019e4af5-e2ec-73f9-a674-64586f859745_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment expense (reversal), net</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinishedGoods_019e4af5-e2ec-7efd-97a0-9a95d95d97cf_terseLabel_en-US" xlink:label="lab_ifrs-full_FinishedGoods" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Finished goods and other</link:label>
    <link:label id="lab_ifrs-full_FinishedGoods_label_en-US" xlink:label="lab_ifrs-full_FinishedGoods" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current finished goods</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinishedGoods" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinishedGoods"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinishedGoods" xlink:to="lab_ifrs-full_FinishedGoods" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfOtherAssetsTableTextBlock_019e4af5-e245-7acf-b3d9-9231a777b6c4_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfOtherAssetsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Other Assets</link:label>
    <link:label id="lab_bbu_DisclosureOfOtherAssetsTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfOtherAssetsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Other Assets [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfOtherAssetsTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfOtherAssetsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Other Assets [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfOtherAssetsTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfOtherAssetsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfOtherAssetsTableTextBlock" xlink:to="lab_bbu_DisclosureOfOtherAssetsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock_019e4af5-e2ec-7041-bfef-618bf9931da8_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of interest and income taxes paid</link:label>
    <link:label id="lab_bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Interest And Income Taxes Paid [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Interest And Income Taxes Paid [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfInterestAndIncomeTaxesPaidTableTextBlock"/>
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    <link:label id="lab_ifrs-full_NoncurrentLiabilitiesAbstract_019e4af5-e246-743b-962b-a8c79ed0e523_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-Current Liabilities</link:label>
    <link:label id="lab_ifrs-full_NoncurrentLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="lab_ifrs-full_NoncurrentLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SpecialLPUnitsHeldByBrookfieldMember_019f1e30-d80e-7089-8bde-47dec2583576_terseLabel_en-US" xlink:label="lab_bbu_SpecialLPUnitsHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity attributable to owners of parent</link:label>
    <link:label id="lab_bbu_SpecialLPUnitsHeldByBrookfieldMember_label_en-US" xlink:label="lab_bbu_SpecialLPUnitsHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special LP Units Held By Brookfield [Member]</link:label>
    <link:label id="lab_bbu_SpecialLPUnitsHeldByBrookfieldMember_documentation_en-US" xlink:label="lab_bbu_SpecialLPUnitsHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Special LP Units Held By Brookfield</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SpecialLPUnitsHeldByBrookfieldMember" xlink:href="bbu-20260630.xsd#bbu_SpecialLPUnitsHeldByBrookfieldMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SpecialLPUnitsHeldByBrookfieldMember" xlink:to="lab_bbu_SpecialLPUnitsHeldByBrookfieldMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentContractLiabilities_019e4af5-e2ed-744b-9e7d-6d24cc1fc54e_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Work in progress</link:label>
    <link:label id="lab_ifrs-full_NoncurrentContractLiabilities_label_en-US" xlink:label="lab_ifrs-full_NoncurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current contract liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentContractLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentContractLiabilities" xlink:to="lab_ifrs-full_NoncurrentContractLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GeographicalAreasDomain_019e4af5-e2ed-7841-9e60-e9910023026c_terseLabel_en-US" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical areas</link:label>
    <link:label id="lab_ifrs-full_GeographicalAreasDomain_label_en-US" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical areas [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasDomain" xlink:to="lab_ifrs-full_GeographicalAreasDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_019e4af5-e2ec-73f5-95eb-e18a7b0f5362_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Gain) loss on dispositions, net</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for losses (gains) on disposal of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:to="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRevenueExplanatory_019e4af5-e2ec-7245-9339-b202fcfaef02_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRevenueExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">REVENUES</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRevenueExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRevenueExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of revenue [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRevenueExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRevenueExplanatory"/>
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    <link:label id="lab_dei_DocumentFiscalYearFocus_019e4af5-e2ec-74e5-b581-0498a101f4bb_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalYearFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember_019e4af5-e245-7a68-a403-f52ad8d4304e_terseLabel_en-US" xlink:label="lab_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LIBOR or bankers' acceptance rate</link:label>
    <link:label id="lab_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember_label_en-US" xlink:label="lab_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">London Interbank Offered Rate (LIBOR) Or Bankers' Acceptance Rate [Member]</link:label>
    <link:label id="lab_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember_documentation_en-US" xlink:label="lab_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">London Interbank Offered Rate (LIBOR) Or Bankers' Acceptance Rate [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember" xlink:href="bbu-20260630.xsd#bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember" xlink:to="lab_bbu_LondonInterbankOfferedRateLIBOROrBankersAcceptanceRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentReceivables_019e4af5-e2ed-7faa-815d-d0dcb96a93e3_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts and other receivable, net</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentReceivables_019e4af5-e2ed-7c94-8c3d-e5ab597ef3c7_verboseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current, net</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentReceivables_019fb3ba-0ff0-7e61-b0ff-44599af261d1_netLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable and other</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentReceivables_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other current receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="lab_ifrs-full_TradeAndOtherCurrentReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract_019e4af5-e245-78a6-a8ff-f53d338710fb_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjusted for the following items:</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile profit (loss) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForReconcileProfitLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:to="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_AcquisitionsAbstract_019e4af5-e245-7c3e-b13f-6d46ac79d15f_terseLabel_en-US" xlink:label="lab_bbu_AcquisitionsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions</link:label>
    <link:label id="lab_bbu_AcquisitionsAbstract_label_en-US" xlink:label="lab_bbu_AcquisitionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisitions [Abstract]</link:label>
    <link:label id="lab_bbu_AcquisitionsAbstract_documentation_en-US" xlink:label="lab_bbu_AcquisitionsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Acquisitions [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_AcquisitionsAbstract" xlink:href="bbu-20260630.xsd#bbu_AcquisitionsAbstract"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners_019e4af5-e246-7127-a153-8209afc3b967_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions and capital paid</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners_019e4af5-e246-726c-a543-69b8783bfb61_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Decrease through other distributions to owners, equity</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease through other distributions to owners, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable_019e4af5-e245-7340-b8d8-14108456d989_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Held For Sale [Table]</link:label>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable_label_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Held For Sale [Table]</link:label>
    <link:label id="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable_documentation_en-US" xlink:label="lab_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Held For Sale [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfAssetsAndLiabilitiesHeldForSaleTable"/>
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    <link:label id="lab_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan_019e4af5-e245-7abf-8e84-1bb32e76ccfc_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current net defined benefit liability</link:label>
    <link:label id="lab_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan_label_en-US" xlink:label="lab_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current net defined benefit liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:to="lab_ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PreferredEquitySecuritiesMember_019e4af5-e2ed-72a7-9aa9-4f96a0dc594d_terseLabel_en-US" xlink:label="lab_bbu_PreferredEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred equity securities</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritiesMember_label_en-US" xlink:label="lab_bbu_PreferredEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Equity Securities [Member]</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritiesMember_documentation_en-US" xlink:label="lab_bbu_PreferredEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preferred Equity Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PreferredEquitySecuritiesMember" xlink:href="bbu-20260630.xsd#bbu_PreferredEquitySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PreferredEquitySecuritiesMember" xlink:to="lab_bbu_PreferredEquitySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts_019e4af5-e246-7e57-a00c-4909f07b74c8_terseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions and&#160;decommissioning liabilities</link:label>
    <link:label id="lab_ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts_label_en-US" xlink:label="lab_ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current provision for decommissioning, restoration and rehabilitation costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:to="lab_ifrs-full_ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentFinancialLiabilities_019e4af5-e246-7ba2-a641-8720f41c91c3_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentFinancialLiabilities" xlink:to="lab_ifrs-full_CurrentFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ConsiderationPaidReceived_019e4af5-e2ec-70b5-881b-ab043a07df3f_terseLabel_en-US" xlink:label="lab_ifrs-full_ConsiderationPaidReceived" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consideration paid (received)</link:label>
    <link:label id="lab_ifrs-full_ConsiderationPaidReceived_label_en-US" xlink:label="lab_ifrs-full_ConsiderationPaidReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consideration paid (received)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ConsiderationPaidReceived" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConsiderationPaidReceived"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ConsiderationPaidReceived" xlink:to="lab_ifrs-full_ConsiderationPaidReceived" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyAxis_019e4af5-e2ec-7cc9-9a45-cfb3c8e8a966_terseLabel_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [axis]</link:label>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyAxis_label_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAttributableToOwnersOfParentMember_019e4af5-e2ec-7936-917c-ca7cd3ce1c5f_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brookfield Asset Management&#160;Inc.</link:label>
    <link:label id="lab_ifrs-full_EquityAttributableToOwnersOfParentMember_label_en-US" xlink:label="lab_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity attributable to owners of parent [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="lab_ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory_019e4af5-e2ec-7bdc-8e3a-50db24c81a63_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of financial assets classification</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsExplanatory"/>
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    <link:label id="lab_ifrs-full_TypesOfInterestRatesDomain_019e4af5-e246-72a5-b55e-ecea35f68aad_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of interest rates [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of interest rates [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfInterestRatesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInterestRatesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesDomain" xlink:to="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_019e4af5-e246-7748-8e1f-af0fc91e2752_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ownership changes and other</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity</link:label>
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    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_019e4af5-e2ed-76ec-b3cd-ab14c4ca55c5_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations</link:label>
    <link:label id="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisitions through business combinations, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment"/>
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    <link:label id="lab_bbu_ConversionExchangeableNoncontrollingInterestShares_019e4af5-e245-7143-869e-4619c73b2a82_negatedTerseLabel_en-US" xlink:label="lab_bbu_ConversionExchangeableNoncontrollingInterestShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Conversion shares (in shares)</link:label>
    <link:label id="lab_bbu_ConversionExchangeableNoncontrollingInterestShares_label_en-US" xlink:label="lab_bbu_ConversionExchangeableNoncontrollingInterestShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Conversion, Exchangeable Noncontrolling Interest, Shares</link:label>
    <link:label id="lab_bbu_ConversionExchangeableNoncontrollingInterestShares_documentation_en-US" xlink:label="lab_bbu_ConversionExchangeableNoncontrollingInterestShares" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Conversion, Exchangeable Noncontrolling Interest, Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ConversionExchangeableNoncontrollingInterestShares" xlink:href="bbu-20260630.xsd#bbu_ConversionExchangeableNoncontrollingInterestShares"/>
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    <link:label id="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations_019e4af5-e246-74bc-a945-9a44316acea8_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">New accounting policies adopted / Future changes in accounting policies</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of expected impact of initial application of new standards or interpretations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations"/>
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    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1_019e4af5-e2ec-7b39-9fed-782a9b1518d2_terseLabel_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Special shareholder</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1_label_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest In Net Income (Loss), Limited Partnerships, Nonredeemable 1</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1_documentation_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest In Net Income (Loss), Limited Partnerships, Nonredeemable 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1" xlink:href="bbu-20260630.xsd#bbu_NoncontrollingInterestInNetIncomeLossLimitedPartnershipsNonredeemable1"/>
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    <link:label id="lab_bbu_ReclassificationAdjustmentsOnDisposalBeforeTax_019e4af5-e2ec-75a5-b125-07c09e6cea33_negatedTerseLabel_en-US" xlink:label="lab_bbu_ReclassificationAdjustmentsOnDisposalBeforeTax" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Reclassification to profit or loss</link:label>
    <link:label id="lab_bbu_ReclassificationAdjustmentsOnDisposalBeforeTax_label_en-US" xlink:label="lab_bbu_ReclassificationAdjustmentsOnDisposalBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification Adjustments On Disposal, Before Tax</link:label>
    <link:label id="lab_bbu_ReclassificationAdjustmentsOnDisposalBeforeTax_documentation_en-US" xlink:label="lab_bbu_ReclassificationAdjustmentsOnDisposalBeforeTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reclassification Adjustments On Disposal, Before Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ReclassificationAdjustmentsOnDisposalBeforeTax" xlink:href="bbu-20260630.xsd#bbu_ReclassificationAdjustmentsOnDisposalBeforeTax"/>
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    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019e4af5-e2ec-785e-891e-cff8f15b3f31_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revaluation of pension obligations</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
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    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_019e4af5-e2ec-7dad-92a6-3c78a15bcfa8_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current trade payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:to="lab_ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ProgressBillings_019e4af5-e246-74db-af05-3bcfe6366832_negatedTerseLabel_en-US" xlink:label="lab_bbu_ProgressBillings" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Less: progress billings</link:label>
    <link:label id="lab_bbu_ProgressBillings_label_en-US" xlink:label="lab_bbu_ProgressBillings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Progress Billings</link:label>
    <link:label id="lab_bbu_ProgressBillings_documentation_en-US" xlink:label="lab_bbu_ProgressBillings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Progress Billings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ProgressBillings" xlink:href="bbu-20260630.xsd#bbu_ProgressBillings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ProgressBillings" xlink:to="lab_bbu_ProgressBillings" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_019e4af5-e245-79ce-9505-a7fe25a2e769_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019e4af5-e2ec-7b07-b950-61a8a5e14b6e_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, net of tax</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest_019e4af5-e2ed-7ed6-a08c-633b7ee992a9_terseLabel_en-US" xlink:label="lab_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Special shareholder</link:label>
    <link:label id="lab_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest_label_en-US" xlink:label="lab_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special Limited Partners, Equity, Noncontrolling Interest</link:label>
    <link:label id="lab_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest_documentation_en-US" xlink:label="lab_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Special Limited Partners, Equity, Noncontrolling Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest" xlink:href="bbu-20260630.xsd#bbu_SpecialLimitedPartnersEquityNoncontrollingInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest" xlink:to="lab_bbu_SpecialLimitedPartnersEquityNoncontrollingInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities_019e4af5-e2ec-793d-9767-49de73fd3c47_negatedTerseLabel_en-US" xlink:label="lab_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from (repayment of) other credit facilities, net</link:label>
    <link:label id="lab_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments For (Proceeds From) Other Credit Facilities, Classified As Financing Activities</link:label>
    <link:label id="lab_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities_documentation_en-US" xlink:label="lab_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payments For (Proceeds From) Other Credit Facilities, Classified As Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities" xlink:href="bbu-20260630.xsd#bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities" xlink:to="lab_bbu_PaymentsForProceedsFromOtherCreditFacilitiesClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_019e4af5-e2ec-7489-bec8-426a150b808c_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_019e4af5-e2ec-7bfd-8f84-6e1a03b41966_totalLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Financial Liabilities</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialLiabilities" xlink:to="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfessionalFeesExpense_019e4af5-e245-7289-be19-b1c50c568cc7_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfessionalFeesExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Base management fee expense</link:label>
    <link:label id="lab_ifrs-full_ProfessionalFeesExpense_label_en-US" xlink:label="lab_ifrs-full_ProfessionalFeesExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Professional fees expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfessionalFeesExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfessionalFeesExpense"/>
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    <link:label id="lab_ifrs-full_RiskAdjustmentForNonfinancialRiskMember_019e4af5-e245-78da-82fb-0ad7562dcdd6_terseLabel_en-US" xlink:label="lab_ifrs-full_RiskAdjustmentForNonfinancialRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Risk adjustment</link:label>
    <link:label id="lab_ifrs-full_RiskAdjustmentForNonfinancialRiskMember_label_en-US" xlink:label="lab_ifrs-full_RiskAdjustmentForNonfinancialRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk adjustment for non-financial risk [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskAdjustmentForNonfinancialRiskMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskAdjustmentForNonfinancialRiskMember"/>
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    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets_019e4af5-e2ec-7957-99dc-347827585813_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in other assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation_019e4af5-e2ed-7636-8f89-4bde8fa13848_terseLabel_en-US" xlink:label="lab_bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation</link:label>
    <link:label id="lab_bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation_label_en-US" xlink:label="lab_bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes that relate to Past service, Foreign Currency Translation</link:label>
    <link:label id="lab_bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation_documentation_en-US" xlink:label="lab_bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes that relate to Past service, Foreign Currency Translation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation" xlink:href="bbu-20260630.xsd#bbu_IncreaseDecreaseThroughChangesThatRelateToPastServiceForeignCurrencyTranslation"/>
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    <link:label id="lab_ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract_019e4af5-e246-700f-bd77-78403a67ebed_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of non-current financial assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract" xlink:to="lab_ifrs-full_CategoriesOfNoncurrentFinancialAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_019e4af5-e246-75aa-93ae-c64e17bd8389_verboseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Liabilities associated with assets held for sale</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities included in disposal groups classified as held for sale</link:label>
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    <link:label id="lab_bbu_ExpensesRelatedToEmployeeIncentivePayments_019e4af5-e2ec-7dc3-ab81-e01c59375f44_terseLabel_en-US" xlink:label="lab_bbu_ExpensesRelatedToEmployeeIncentivePayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expenses related to employee incentive payments</link:label>
    <link:label id="lab_bbu_ExpensesRelatedToEmployeeIncentivePayments_label_en-US" xlink:label="lab_bbu_ExpensesRelatedToEmployeeIncentivePayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expenses Related To Employee Incentive Payments</link:label>
    <link:label id="lab_bbu_ExpensesRelatedToEmployeeIncentivePayments_documentation_en-US" xlink:label="lab_bbu_ExpensesRelatedToEmployeeIncentivePayments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Expenses Related To Employee Incentive Payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ExpensesRelatedToEmployeeIncentivePayments" xlink:href="bbu-20260630.xsd#bbu_ExpensesRelatedToEmployeeIncentivePayments"/>
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    <link:label id="lab_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination_019e4af5-e246-7397-abc2-0bcba69fcf63_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination</link:label>
    <link:label id="lab_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination_label_en-US" xlink:label="lab_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination"/>
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    <link:label id="lab_ifrs-full_ProfitLossAttributableToAbstract_019e4af5-e2ec-7aca-a79b-73bc871d03d8_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Attributable to:</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToAbstract_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToAbstract" xlink:to="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_019e4af5-e246-7342-b3fb-84ff7c2a8f8b_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross carrying amount</link:label>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_label_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross carrying amount [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossCarryingAmountMember" xlink:to="lab_ifrs-full_GrossCarryingAmountMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayables_019e4af5-e245-7aeb-a318-dc38cde05fb3_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable and other</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayables_019e4af5-e245-7961-ac0d-0e091d7fe082_totalLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayables_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other current payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentPayables" xlink:to="lab_ifrs-full_TradeAndOtherCurrentPayables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAndLiabilitiesAbstract_019e4af5-e246-7b2b-9345-c3f3e01b5528_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities and Equity</link:label>
    <link:label id="lab_ifrs-full_EquityAndLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity and liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAndLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAndLiabilitiesAbstract" xlink:to="lab_ifrs-full_EquityAndLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInventoriesExplanatory_019e4af5-e2ec-789b-9976-b11ea064280e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">INVENTORY, NET</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInventoriesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of inventories [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInventoriesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInventoriesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract_019e4af5-e246-75f2-8e21-3634302f66e3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of other comprehensive income by item [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of other comprehensive income by item [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract" xlink:to="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract_019e4af5-e2ec-753e-88cf-cad638543654_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in property, plant and equipment [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in property, plant and equipment [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestRevenueExpense_019e4af5-e2ed-786a-822c-085fae930fd1_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRevenueExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest income (expense), net</link:label>
    <link:label id="lab_ifrs-full_InterestRevenueExpense_label_en-US" xlink:label="lab_ifrs-full_InterestRevenueExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest income (expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRevenueExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRevenueExpense" xlink:to="lab_ifrs-full_InterestRevenueExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss_019e4af5-e246-7873-8b9e-22ad8d0fb893_terseLabel_en-US" xlink:label="lab_ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance finance reserve</link:label>
    <link:label id="lab_ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance finance income (expenses) from insurance contracts issued recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_InsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EuropeMember_019e4af5-e246-746e-ba3f-2a787f29f97b_terseLabel_en-US" xlink:label="lab_srt_EuropeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Europe</link:label>
    <link:label id="lab_srt_EuropeMember_label_en-US" xlink:label="lab_srt_EuropeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Europe [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EuropeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EuropeMember" xlink:to="lab_srt_EuropeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets_019e4af5-e245-7775-9489-67c628228d7e_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value change recorded in other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:to="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity_019e4af5-e246-7e44-af26-372948b6a409_terseLabel_en-US" xlink:label="lab_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain (loss) on dispositions, net recorded in equity</link:label>
    <link:label id="lab_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity_label_en-US" xlink:label="lab_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Acquisitions Or Disposals, Net Recorded In Equity</link:label>
    <link:label id="lab_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity_documentation_en-US" xlink:label="lab_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Acquisitions Or Disposals, Net Recorded In Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity" xlink:href="bbu-20260630.xsd#bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity" xlink:to="lab_bbu_GainsLossesOnAcquisitionsOrDisposalsNetRecordedInEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_019e4af5-e2ed-75a1-9bd8-5c639bab6576_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on hedges of net investments in foreign operations, before tax</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on hedges of net investments in foreign operations, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:to="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_019e4af5-e246-73ab-abbd-9b88cd791dc7_terseLabel_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions (cash and non-cash)</link:label>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions other than through business combinations, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate_019e4af5-e2ec-7a38-bb7d-dedd6aa37caf_terseLabel_en-US" xlink:label="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Identifiable intangible assets recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Identifiable intangible assets recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate"/>
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    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_019e4af5-e246-7a9d-9607-c90c042adeef_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FVTPL</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LongtermBorrowings_019e4af5-e245-797c-bb61-b42b4b9586e9_terseLabel_en-US" xlink:label="lab_ifrs-full_LongtermBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-recourse borrowings in subsidiaries of the Corporation</link:label>
    <link:label id="lab_ifrs-full_LongtermBorrowings_019e4af5-e245-7c6a-b192-6a313695e3a0_verboseLabel_en-US" xlink:label="lab_ifrs-full_LongtermBorrowings" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-current portion of non-current borrowings</link:label>
    <link:label id="lab_ifrs-full_LongtermBorrowings_label_en-US" xlink:label="lab_ifrs-full_LongtermBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current portion of non-current borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LongtermBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LongtermBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LongtermBorrowings" xlink:to="lab_ifrs-full_LongtermBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_019e4af5-e2ed-73fa-ab3b-f2b4cbb17ae8_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in inventories</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss_019e4af5-e2ed-700e-aef3-1d09db7339ff_terseLabel_en-US" xlink:label="lab_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income (expense), net</link:label>
    <link:label id="lab_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss_label_en-US" xlink:label="lab_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Operating Income (Expense), Recognized In Profit And Loss</link:label>
    <link:label id="lab_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss_documentation_en-US" xlink:label="lab_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Operating Income (Expense), Recognized In Profit And Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss" xlink:href="bbu-20260630.xsd#bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss" xlink:to="lab_bbu_OtherOperatingIncomeExpenseRecognizedInProfitAndLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod_019e4af5-e246-7411-b3a1-11e5b170cfa2_negatedTerseLabel_en-US" xlink:label="lab_bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Non-cash items attributable to equity accounted investments</link:label>
    <link:label id="lab_bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncash Items Attributable To Investments Accounted For Using Equity Method</link:label>
    <link:label id="lab_bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod_documentation_en-US" xlink:label="lab_bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Noncash Items Attributable To Investments Accounted For Using Equity Method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod" xlink:href="bbu-20260630.xsd#bbu_NoncashItemsAttributableToInvestmentsAccountedForUsingEquityMethod"/>
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    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems_019e4af5-e245-7c9d-ab35-ae208ed2ad5a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfContractsInProgressTableTextBlock_019e4af5-e245-7aae-9f24-9db8fc0dd84f_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfContractsInProgressTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of contracts in progress</link:label>
    <link:label id="lab_bbu_DisclosureOfContractsInProgressTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfContractsInProgressTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Contracts In Progress [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfContractsInProgressTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfContractsInProgressTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Contracts In Progress [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfContractsInProgressTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfContractsInProgressTableTextBlock"/>
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    <link:label id="lab_bbu_TradeAndOtherPayablesMember_019e4af5-e245-774d-8d4d-7335c5847530_terseLabel_en-US" xlink:label="lab_bbu_TradeAndOtherPayablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable and other (current and non-current)</link:label>
    <link:label id="lab_bbu_TradeAndOtherPayablesMember_label_en-US" xlink:label="lab_bbu_TradeAndOtherPayablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade And Other Payables [Member]</link:label>
    <link:label id="lab_bbu_TradeAndOtherPayablesMember_documentation_en-US" xlink:label="lab_bbu_TradeAndOtherPayablesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trade And Other Payables [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_TradeAndOtherPayablesMember" xlink:href="bbu-20260630.xsd#bbu_TradeAndOtherPayablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_TradeAndOtherPayablesMember" xlink:to="lab_bbu_TradeAndOtherPayablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_019e4af5-e2ec-78cd-97fd-f1fdef73388f_terseLabel_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consideration transferred</link:label>
    <link:label id="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_label_en-US" xlink:label="lab_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consideration transferred, acquisition-date fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred"/>
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    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f9326-0bca-700b-aba3-8a2c00e252a6_terseLabel_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_label_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_019e4af5-e245-71a9-9240-709ac3ebd15a_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from non-recourse subsidiary borrowings of the Corporation</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from borrowings, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_019e4af5-e2ed-72f5-9005-08be84e89ea1_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Lease liability repayment</link:label>
    <link:label id="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments of lease liabilities, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
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    <link:label id="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_019e4af5-e245-7f4a-b90c-b8ebb3e540de_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Equity accounted earnings, net of distributions</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for undistributed profits of investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod"/>
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    <link:label id="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019e4af5-e246-7acb-bfcf-e0d98ea779eb_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share of other comprehensive income (loss)</link:label>
    <link:label id="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of total comprehensive income of associates and joint ventures accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
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    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_019e4af5-e245-7708-b516-c6a06c341582_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACQUISITION OF BUSINESSES</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of business combinations [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsExplanatory"/>
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    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_019e4af5-e2ec-7807-843f-37e5f3e7af38_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Economic interest (%)</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_019e4af5-e2ec-7ba1-95c6-275c4a45094d_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in subsidiary</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in subsidiary</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalOfMajorSubsidiaryMember_019e4af5-e245-7bb0-b978-45a897e67886_terseLabel_en-US" xlink:label="lab_ifrs-full_DisposalOfMajorSubsidiaryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disposal of major subsidiary</link:label>
    <link:label id="lab_ifrs-full_DisposalOfMajorSubsidiaryMember_label_en-US" xlink:label="lab_ifrs-full_DisposalOfMajorSubsidiaryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal of major subsidiary [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalOfMajorSubsidiaryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalOfMajorSubsidiaryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalOfMajorSubsidiaryMember" xlink:to="lab_ifrs-full_DisposalOfMajorSubsidiaryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_FinancingReceivables_019e4af5-e2ec-7a2c-96ac-1ebaabbae3f6_terseLabel_en-US" xlink:label="lab_bbu_FinancingReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and notes receivable</link:label>
    <link:label id="lab_bbu_FinancingReceivables_label_en-US" xlink:label="lab_bbu_FinancingReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables</link:label>
    <link:label id="lab_bbu_FinancingReceivables_documentation_en-US" xlink:label="lab_bbu_FinancingReceivables" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financing Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_FinancingReceivables" xlink:href="bbu-20260630.xsd#bbu_FinancingReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_FinancingReceivables" xlink:to="lab_bbu_FinancingReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_019e4af5-e246-7b8d-b3be-22555f4f7cf0_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShare_019e4af5-e245-7b9b-a577-473b35302c66_terseLabel_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic earnings (loss) per limited partner unit (in dollars per share)</link:label>
    <link:label id="lab_ifrs-full_BasicEarningsLossPerShare_label_en-US" xlink:label="lab_ifrs-full_BasicEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic earnings (loss) per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BasicEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BasicEarningsLossPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BasicEarningsLossPerShare" xlink:to="lab_ifrs-full_BasicEarningsLossPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions_019e4af5-e246-7208-ba48-d4591ba5d973_terseLabel_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Partnership commitment agreement, maximum amount</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions_label_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Equity Security Subscription Under Partnership, Maximum Amount, Related Party Transactions</link:label>
    <link:label id="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions_documentation_en-US" xlink:label="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preferred Equity Security Subscription Under Partnership, Maximum Amount, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions" xlink:href="bbu-20260630.xsd#bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions" xlink:to="lab_bbu_PreferredEquitySecuritySubscriptionUnderPartnershipMaximumAmountRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MeasurementAxis_019e4af5-e2ec-7e6c-a732-36a5fb63b10e_terseLabel_en-US" xlink:label="lab_ifrs-full_MeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measurement [axis]</link:label>
    <link:label id="lab_ifrs-full_MeasurementAxis_label_en-US" xlink:label="lab_ifrs-full_MeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MeasurementAxis" xlink:to="lab_ifrs-full_MeasurementAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SecuredOvernightFinancingRateSOFRMember_019e4af5-e2ed-775e-b99c-c6410a90119a_terseLabel_en-US" xlink:label="lab_bbu_SecuredOvernightFinancingRateSOFRMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Secured Overnight Financing Rate (SOFR)</link:label>
    <link:label id="lab_bbu_SecuredOvernightFinancingRateSOFRMember_label_en-US" xlink:label="lab_bbu_SecuredOvernightFinancingRateSOFRMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Secured Overnight Financing Rate (SOFR) [Member]</link:label>
    <link:label id="lab_bbu_SecuredOvernightFinancingRateSOFRMember_documentation_en-US" xlink:label="lab_bbu_SecuredOvernightFinancingRateSOFRMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Secured Overnight Financing Rate (SOFR)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SecuredOvernightFinancingRateSOFRMember" xlink:href="bbu-20260630.xsd#bbu_SecuredOvernightFinancingRateSOFRMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SecuredOvernightFinancingRateSOFRMember" xlink:to="lab_bbu_SecuredOvernightFinancingRateSOFRMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BrandAndTrademarksMember_019e4af5-e2ec-7a8c-bb8e-a49d8a094f69_terseLabel_en-US" xlink:label="lab_bbu_BrandAndTrademarksMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brand and Trademarks</link:label>
    <link:label id="lab_bbu_BrandAndTrademarksMember_label_en-US" xlink:label="lab_bbu_BrandAndTrademarksMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Brand And Trademarks [Member]</link:label>
    <link:label id="lab_bbu_BrandAndTrademarksMember_documentation_en-US" xlink:label="lab_bbu_BrandAndTrademarksMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brand And Trademarks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BrandAndTrademarksMember" xlink:href="bbu-20260630.xsd#bbu_BrandAndTrademarksMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BrandAndTrademarksMember" xlink:to="lab_bbu_BrandAndTrademarksMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable_019e4af5-e2ec-72f9-b0da-71d5b69218a5_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Table]</link:label>
    <link:label id="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable_label_en-US" xlink:label="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Table]</link:label>
    <link:label id="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable_documentation_en-US" xlink:label="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable" xlink:to="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfCashFlowsAbstract_019e4af5-e2ec-7e6b-93ea-17602ac64aa1_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of cash flows [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfCashFlowsAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of cash flows [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTable_019e4af5-e245-7875-be3b-7963b66c0f06_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses_019e4af5-e245-75c8-8f69-b89c37759983_terseLabel_en-US" xlink:label="lab_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract costs incurred and profit recognized (less recognized losses)</link:label>
    <link:label id="lab_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses_label_en-US" xlink:label="lab_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Costs Incurred And Recognised Profits (Less Recognised Losses)</link:label>
    <link:label id="lab_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses_documentation_en-US" xlink:label="lab_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Costs Incurred And Recognised Profits (Less Recognised Losses)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses" xlink:href="bbu-20260630.xsd#bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses" xlink:to="lab_bbu_CostsIncurredAndRecognisedProfitsLessRecognisedLosses" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions_019e4af5-e245-7fca-9baa-363a41ef3a57_terseLabel_en-US" xlink:label="lab_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-recourse borrowings in subsidiaries of the Corporation</link:label>
    <link:label id="lab_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions_label_en-US" xlink:label="lab_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Recourse Borrowings In Subsidiaries, Related Party Transactions</link:label>
    <link:label id="lab_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions_documentation_en-US" xlink:label="lab_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Recourse Borrowings In Subsidiaries, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions" xlink:href="bbu-20260630.xsd#bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions" xlink:to="lab_bbu_NonRecourseBorrowingsInSubsidiariesRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FloatingInterestRateMember_019e4af5-e245-7d2b-8e55-066e03c4c1f4_terseLabel_en-US" xlink:label="lab_ifrs-full_FloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Floating interest rate</link:label>
    <link:label id="lab_ifrs-full_FloatingInterestRateMember_label_en-US" xlink:label="lab_ifrs-full_FloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Floating interest rate [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FloatingInterestRateMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FloatingInterestRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FloatingInterestRateMember" xlink:to="lab_ifrs-full_FloatingInterestRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_019e4af5-e246-7ee0-8d6c-d9b964e5d37e_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets other than goodwill [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InsuranceContractsThatAreLiabilities_019e4af5-e246-7d5a-b8dc-19f9dd3426c6_periodStartLabel_en-US" xlink:label="lab_ifrs-full_InsuranceContractsThatAreLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Insurance liabilities at the beginning</link:label>
    <link:label id="lab_ifrs-full_InsuranceContractsThatAreLiabilities_019e4af5-e246-7786-9114-a3465008f3f0_periodEndLabel_en-US" xlink:label="lab_ifrs-full_InsuranceContractsThatAreLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Insurance liabilities at the end</link:label>
    <link:label id="lab_ifrs-full_InsuranceContractsThatAreLiabilities_label_en-US" xlink:label="lab_ifrs-full_InsuranceContractsThatAreLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance contracts that are liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InsuranceContractsThatAreLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InsuranceContractsThatAreLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InsuranceContractsThatAreLiabilities" xlink:to="lab_ifrs-full_InsuranceContractsThatAreLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BrookfieldCreditAgreementsMember_019e4af5-e246-7135-b197-68f87212c78d_terseLabel_en-US" xlink:label="lab_bbu_BrookfieldCreditAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brookfield credit agreements</link:label>
    <link:label id="lab_bbu_BrookfieldCreditAgreementsMember_label_en-US" xlink:label="lab_bbu_BrookfieldCreditAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Brookfield Credit Agreements [Member]</link:label>
    <link:label id="lab_bbu_BrookfieldCreditAgreementsMember_documentation_en-US" xlink:label="lab_bbu_BrookfieldCreditAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brookfield Credit Agreements [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BrookfieldCreditAgreementsMember" xlink:href="bbu-20260630.xsd#bbu_BrookfieldCreditAgreementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BrookfieldCreditAgreementsMember" xlink:to="lab_bbu_BrookfieldCreditAgreementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MiscellaneousCurrentAssetsAbstract_019e4af5-e246-7f8f-944a-cd41ff2659d5_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousCurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousCurrentAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousCurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous current assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousCurrentAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousCurrentAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousCurrentAssetsAbstract" xlink:to="lab_ifrs-full_MiscellaneousCurrentAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember_019e4af5-e2ec-78e4-b3d8-c78a8784cda2_terseLabel_en-US" xlink:label="lab_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Special shareholder</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember_label_en-US" xlink:label="lab_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest Attributable To Special Limited Partners [Member]</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember_documentation_en-US" xlink:label="lab_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest Attributable To Special Limited Partners [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember" xlink:href="bbu-20260630.xsd#bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember" xlink:to="lab_bbu_NoncontrollingInterestAttributableToSpecialLimitedPartnersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfJointVenturesLineItems_019f9326-0bca-7634-b984-d4a4b000804a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfJointVenturesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of joint ventures [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfJointVenturesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfJointVenturesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of joint ventures [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfJointVenturesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfJointVenturesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfJointVenturesLineItems" xlink:to="lab_ifrs-full_DisclosureOfJointVenturesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis_019e4af5-e246-7785-9014-43a0ad5962aa_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents_019e4af5-e246-7c92-8660-38bb5a3b6bd6_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash</link:label>
    <link:label id="lab_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current restricted cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentRestrictedCashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:to="lab_ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_LimitedPartnersCapitalAccount1_019e4af5-e2ec-7de1-93d3-22275ba1e15d_terseLabel_en-US" xlink:label="lab_bbu_LimitedPartnersCapitalAccount1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class A shareholders</link:label>
    <link:label id="lab_bbu_LimitedPartnersCapitalAccount1_label_en-US" xlink:label="lab_bbu_LimitedPartnersCapitalAccount1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partners Capital Account1</link:label>
    <link:label id="lab_bbu_LimitedPartnersCapitalAccount1_documentation_en-US" xlink:label="lab_bbu_LimitedPartnersCapitalAccount1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Limited Partners Capital Account1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_LimitedPartnersCapitalAccount1" xlink:href="bbu-20260630.xsd#bbu_LimitedPartnersCapitalAccount1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_LimitedPartnersCapitalAccount1" xlink:to="lab_bbu_LimitedPartnersCapitalAccount1" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DividendsPaidToOtherUnitholders_019e4af5-e2ec-7477-b024-f09e23ec9b9b_negatedTerseLabel_en-US" xlink:label="lab_bbu_DividendsPaidToOtherUnitholders" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions and capital paid to others who have interests in operating subsidiaries</link:label>
    <link:label id="lab_bbu_DividendsPaidToOtherUnitholders_label_en-US" xlink:label="lab_bbu_DividendsPaidToOtherUnitholders" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Paid To Other Unitholders</link:label>
    <link:label id="lab_bbu_DividendsPaidToOtherUnitholders_documentation_en-US" xlink:label="lab_bbu_DividendsPaidToOtherUnitholders" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dividends Paid To Other Unitholders</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DividendsPaidToOtherUnitholders" xlink:href="bbu-20260630.xsd#bbu_DividendsPaidToOtherUnitholders"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DividendsPaidToOtherUnitholders" xlink:to="lab_bbu_DividendsPaidToOtherUnitholders" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_019e4af5-e245-79a3-8c8c-77d6f00d868a_terseLabel_en-US" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income tax (expense) recovery</link:label>
    <link:label id="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major components of tax expense (income) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates_019e4af5-e2ec-7548-80be-c1a689ba2688_negatedTerseLabel_en-US" xlink:label="lab_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dispositions</link:label>
    <link:label id="lab_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates_label_en-US" xlink:label="lab_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Consolidation, Joint Ventures And Associates</link:label>
    <link:label id="lab_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates_documentation_en-US" xlink:label="lab_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Consolidation, Joint Ventures And Associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates" xlink:href="bbu-20260630.xsd#bbu_DecreaseThroughConsolidationJointVenturesAndAssociates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates" xlink:to="lab_bbu_DecreaseThroughConsolidationJointVenturesAndAssociates" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries_019e4af5-e245-7ddf-a594-93cfaad3c7ad_terseLabel_en-US" xlink:label="lab_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of partnership's subsidiaries (in subsidiaries)</link:label>
    <link:label id="lab_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries_label_en-US" xlink:label="lab_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference Shares Subscription, Number Of Partnership's Subsidiaries</link:label>
    <link:label id="lab_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries_documentation_en-US" xlink:label="lab_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preference Shares Subscription, Number Of Partnership's Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries" xlink:href="bbu-20260630.xsd#bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries" xlink:to="lab_bbu_PreferenceSharesSubscriptionNumberOfPartnershipsSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_019e4af5-e245-70c4-b11e-ed5917cbfd5c_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition of interest</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through acquisition of subsidiary, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughAcquisitionOfSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_country_BR_019e4af5-e2ec-7772-97b7-ae0eb72c4d82_terseLabel_en-US" xlink:label="lab_country_BR" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brazil</link:label>
    <link:label id="lab_country_BR_label_en-US" xlink:label="lab_country_BR" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BRAZIL</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_BR" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_BR"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_BR" xlink:to="lab_country_BR" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsAxis_019e4af5-e2ed-7cb3-98e3-261e2816da6f_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment consolidation items [axis]</link:label>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsAxis_label_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment consolidation items [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentConsolidationItemsAxis" xlink:to="lab_ifrs-full_SegmentConsolidationItemsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember_019e4af5-e246-763c-ab00-1d0c9a3229d8_terseLabel_en-US" xlink:label="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer-related intangible assets</link:label>
    <link:label id="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember_label_en-US" xlink:label="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer-related intangible assets [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CustomerrelatedIntangibleAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:to="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable_019e4af5-e2ec-7f98-966a-3ab8092a01df_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of other comprehensive income by item [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of other comprehensive income by item [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable" xlink:to="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory_019e4af5-e2ed-78d5-ac4d-77ebb14f200c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of reconciliation of changes in intangible assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory_019e4af5-e2ed-781b-826f-1dcd97a43dfa_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of reconciliation of changes in goodwill</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BrookfieldWealthSolutionsMember_019e4af5-e2ec-78e9-94b5-7590de22f180_terseLabel_en-US" xlink:label="lab_bbu_BrookfieldWealthSolutionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brookfield Wealth Solutions</link:label>
    <link:label id="lab_bbu_BrookfieldWealthSolutionsMember_label_en-US" xlink:label="lab_bbu_BrookfieldWealthSolutionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Brookfield Wealth Solutions [Member]</link:label>
    <link:label id="lab_bbu_BrookfieldWealthSolutionsMember_documentation_en-US" xlink:label="lab_bbu_BrookfieldWealthSolutionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brookfield Wealth Solutions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BrookfieldWealthSolutionsMember" xlink:href="bbu-20260630.xsd#bbu_BrookfieldWealthSolutionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BrookfieldWealthSolutionsMember" xlink:to="lab_bbu_BrookfieldWealthSolutionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_019e4af5-e246-7b58-aa25-875e43aa43f4_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity accounted investments</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_019e4af5-e246-74d3-8e4f-1c1fe003976f_periodStartLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_019e4af5-e246-75fc-85b2-f5edf786f495_periodEndLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAbstract_019e4af5-e245-71bf-b4f5-deccadcdaa7b_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:label id="lab_ifrs-full_EquityAbstract_label_en-US" xlink:label="lab_ifrs-full_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAbstract" xlink:to="lab_ifrs-full_EquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherExpenseByNature_019e4af5-e2ec-7cab-933f-e54a390dfbf1_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherExpenseByNature" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other expenses</link:label>
    <link:label id="lab_ifrs-full_OtherExpenseByNature_label_en-US" xlink:label="lab_ifrs-full_OtherExpenseByNature" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other expenses, by nature</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherExpenseByNature" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherExpenseByNature"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherExpenseByNature" xlink:to="lab_ifrs-full_OtherExpenseByNature" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentPayablesToTradeSuppliers_019e4af5-e2ec-7712-a9a0-d7800b68aeaf_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentPayablesToTradeSuppliers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_ifrs-full_NoncurrentPayablesToTradeSuppliers_label_en-US" xlink:label="lab_ifrs-full_NoncurrentPayablesToTradeSuppliers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current trade payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentPayablesToTradeSuppliers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentPayablesToTradeSuppliers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentPayablesToTradeSuppliers" xlink:to="lab_ifrs-full_NoncurrentPayablesToTradeSuppliers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities_019f1c82-8475-7796-afc3-dadbac4bada1_terseLabel_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions</link:label>
    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchases, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchasesFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory_019e4af5-e2ec-73d7-b510-c4e1464d5730_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of carrying and fair values of financial assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019e4af5-e246-72fd-9c6b-ae2392f4e2cc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_019e4af5-e246-7b5d-8481-6dee0e0fcea8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset_019e4af5-e2ec-7b39-b3e7-75ff27509e7b_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Experience adjustments</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through experience adjustments, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughExperienceAdjustmentsInsuranceContractsLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NonCurrentInsuranceLiabilities_019e4af5-e2ed-7997-9123-b0734538fb1e_terseLabel_en-US" xlink:label="lab_bbu_NonCurrentInsuranceLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance liabilities</link:label>
    <link:label id="lab_bbu_NonCurrentInsuranceLiabilities_label_en-US" xlink:label="lab_bbu_NonCurrentInsuranceLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current Insurance Liabilities</link:label>
    <link:label id="lab_bbu_NonCurrentInsuranceLiabilities_documentation_en-US" xlink:label="lab_bbu_NonCurrentInsuranceLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-current Insurance Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NonCurrentInsuranceLiabilities" xlink:href="bbu-20260630.xsd#bbu_NonCurrentInsuranceLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NonCurrentInsuranceLiabilities" xlink:to="lab_bbu_NonCurrentInsuranceLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAbstract_019e4af5-e2ec-7008-8635-6d698fb23ecb_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss):</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems_019e4af5-e2ec-76ac-bd53-e2fb336288e9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_country_CA_019e4af5-e246-7616-adc8-a2e0a5a5dfb3_terseLabel_en-US" xlink:label="lab_country_CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Canada</link:label>
    <link:label id="lab_country_CA_label_en-US" xlink:label="lab_country_CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CANADA</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_CA" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CA"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_CA" xlink:to="lab_country_CA" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract_019e4af5-e2ec-78a2-80a7-735cc0499908_terseLabel_en-US" xlink:label="lab_ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subclassifications of assets, liabilities and equities [abstract]</link:label>
    <link:label id="lab_ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subclassifications of assets, liabilities and equities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract" xlink:to="lab_ifrs-full_SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PortionOfOwnershipInterestInSubsidiarySold_019fb3b8-78b1-799b-a78e-9ebec6edc1bf_terseLabel_en-US" xlink:label="lab_bbu_PortionOfOwnershipInterestInSubsidiarySold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest sold</link:label>
    <link:label id="lab_bbu_PortionOfOwnershipInterestInSubsidiarySold_label_en-US" xlink:label="lab_bbu_PortionOfOwnershipInterestInSubsidiarySold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Portion Of Ownership Interest In Subsidiary Sold</link:label>
    <link:label id="lab_bbu_PortionOfOwnershipInterestInSubsidiarySold_documentation_en-US" xlink:label="lab_bbu_PortionOfOwnershipInterestInSubsidiarySold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Portion Of Ownership Interest In Subsidiary Sold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PortionOfOwnershipInterestInSubsidiarySold" xlink:href="bbu-20260630.xsd#bbu_PortionOfOwnershipInterestInSubsidiarySold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PortionOfOwnershipInterestInSubsidiarySold" xlink:to="lab_bbu_PortionOfOwnershipInterestInSubsidiarySold" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset_019e4af5-e2ec-71f1-a0ae-61d550f383da_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contracts initially recognized in the period</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through effects of contracts initially recognised in period, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughEffectsOfContractsInitiallyRecognisedInPeriodInsuranceContractsLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalDomain_019e4af5-e245-7b58-b42e-5481c9c2e346_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of share capital</link:label>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of share capital [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfShareCapitalDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfShareCapitalDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalDomain" xlink:to="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_019e4af5-e246-7c50-ab02-add2a1f8c9eb_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:to="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_019e4af5-e2ec-7064-870a-308505e82746_terseLabel_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions</link:label>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions other than through business combinations, intangible assets other than goodwill</link:label>
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    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CashReceiptsFromFuturesContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivitiesAssetsLiabilities_019e4af5-e2ed-7c7d-bcfd-c479131d182c_terseLabel_en-US" xlink:label="lab_bbu_CashReceiptsFromFuturesContractsForwardContractsOptionContractsAndSwapContractsClassifiedAsInvestingActivitiesAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net settlement of derivative assets and liabilities</link:label>
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    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019e4af5-e246-7b8d-b87d-01c125d33efe_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
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    <link:label id="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019e4af5-e245-7286-9ec9-539169d82d76_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Subsidiaries, net of cash acquired</link:label>
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    <link:label id="lab_bbu_EventsAfterReportingPeriodAbstract_documentation_en-US" xlink:label="lab_bbu_EventsAfterReportingPeriodAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Events After Reporting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_EventsAfterReportingPeriodAbstract" xlink:href="bbu-20260630.xsd#bbu_EventsAfterReportingPeriodAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_EventsAfterReportingPeriodAbstract" xlink:to="lab_bbu_EventsAfterReportingPeriodAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax_019e4af5-e246-7108-ab58-464304e8b07b_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity accounted investments</link:label>
    <link:label id="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax_label_en-US" xlink:label="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax"/>
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    <link:label id="lab_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount_019f1d04-72bc-7125-b53b-9bb9400d1a71_terseLabel_en-US" xlink:label="lab_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Private equity fund, fair value of partnership proceeds, amount</link:label>
    <link:label id="lab_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount_label_en-US" xlink:label="lab_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Private Equity Fund, Fair Value Of Partnership Proceeds, Amount</link:label>
    <link:label id="lab_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount_documentation_en-US" xlink:label="lab_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Private Equity Fund, Fair Value Of Partnership Proceeds, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount" xlink:href="bbu-20260630.xsd#bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount" xlink:to="lab_bbu_PrivateEquityFundFairValueOfPartnershipProceedsAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory_019e4af5-e246-7f39-81ba-565ea12e510b_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of segment revenues by timing of revenue recognition for revenue from contracts with customers</link:label>
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    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis_019e4af5-e246-74fa-8124-9b4f63b30532_terseLabel_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services [axis]</link:label>
    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis_label_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TimingOfTransferOfGoodsOrServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TimingOfTransferOfGoodsOrServicesAxis"/>
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    <link:label id="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities_019f1c8c-0420-7a25-846b-7b266b226526_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets pledged as collateral for liabilities or contingent liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets pledged as collateral for liabilities or contingent liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities"/>
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    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementAssets_019e4af5-e246-7f05-ab3b-fc9d52a417b4_terseLabel_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions</link:label>
    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchases, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchasesFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:to="lab_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates_019e4af5-e246-788a-966d-9cc7a0cf05b0_negatedTerseLabel_en-US" xlink:label="lab_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions received</link:label>
    <link:label id="lab_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates_label_en-US" xlink:label="lab_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Distributions, Joint Ventures And Associates</link:label>
    <link:label id="lab_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates_documentation_en-US" xlink:label="lab_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Distributions, Joint Ventures And Associates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates" xlink:href="bbu-20260630.xsd#bbu_DecreaseThroughDistributionsJointVenturesAndAssociates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates" xlink:to="lab_bbu_DecreaseThroughDistributionsJointVenturesAndAssociates" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalGroupClassification1Domain_019e4af5-e2ec-7b4b-9bd1-29be8c088238_terseLabel_en-US" xlink:label="lab_bbu_DisposalGroupClassification1Domain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disposal Group Classification1 [Domain]</link:label>
    <link:label id="lab_bbu_DisposalGroupClassification1Domain_label_en-US" xlink:label="lab_bbu_DisposalGroupClassification1Domain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Group Classification1 [Domain]</link:label>
    <link:label id="lab_bbu_DisposalGroupClassification1Domain_documentation_en-US" xlink:label="lab_bbu_DisposalGroupClassification1Domain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Domain] for Disposal Group Classification1 [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalGroupClassification1Domain" xlink:href="bbu-20260630.xsd#bbu_DisposalGroupClassification1Domain"/>
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    <link:label id="lab_ifrs-full_Liabilities_019e4af5-e2ed-70ce-8de6-5a303f9e04b2_totalLabel_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_ifrs-full_Liabilities_label_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Liabilities" xlink:to="lab_ifrs-full_Liabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill_019e4af5-e2ec-7482-af41-8fe2f5ae4345_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dispositions</link:label>
    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsIntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherDifferencesToCashAndCashEquivalentsInStatementOfCashFlows_019e4af5-e246-7545-950d-3b0c392e4916_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_OtherDifferencesToCashAndCashEquivalentsInStatementOfCashFlows" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net change in cash classified within assets held for sale</link:label>
    <link:label id="lab_ifrs-full_OtherDifferencesToCashAndCashEquivalentsInStatementOfCashFlows_label_en-US" xlink:label="lab_ifrs-full_OtherDifferencesToCashAndCashEquivalentsInStatementOfCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other differences to cash and cash equivalents in statement of cash flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherDifferencesToCashAndCashEquivalentsInStatementOfCashFlows" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherDifferencesToCashAndCashEquivalentsInStatementOfCashFlows"/>
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    <link:label id="lab_bbu_PremiumReceived_019e4af5-e246-7f90-98c2-785c9a7101bb_terseLabel_en-US" xlink:label="lab_bbu_PremiumReceived" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Premiums received</link:label>
    <link:label id="lab_bbu_PremiumReceived_label_en-US" xlink:label="lab_bbu_PremiumReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Premium Received</link:label>
    <link:label id="lab_bbu_PremiumReceived_documentation_en-US" xlink:label="lab_bbu_PremiumReceived" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Premium Received</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PremiumReceived" xlink:href="bbu-20260630.xsd#bbu_PremiumReceived"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PremiumReceived" xlink:to="lab_bbu_PremiumReceived" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentReceivablesAbstract_019e4af5-e246-75c6-a28a-a6423ac5a104_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivablesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current, net</link:label>
    <link:label id="lab_ifrs-full_NoncurrentReceivablesAbstract_label_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivablesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other non-current receivables [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentReceivablesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivablesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentReceivablesAbstract" xlink:to="lab_ifrs-full_NoncurrentReceivablesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_019e4af5-e2ed-7c65-be68-0c5f7cc6b737_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value change recorded in net income</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets"/>
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    <link:label id="lab_bbu_OtherNoncontrollingInterests1_019e4af5-e2ec-7202-9db9-77a451071e05_terseLabel_en-US" xlink:label="lab_bbu_OtherNoncontrollingInterests1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest of others in operating subsidiaries</link:label>
    <link:label id="lab_bbu_OtherNoncontrollingInterests1_label_en-US" xlink:label="lab_bbu_OtherNoncontrollingInterests1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Noncontrolling Interests 1</link:label>
    <link:label id="lab_bbu_OtherNoncontrollingInterests1_documentation_en-US" xlink:label="lab_bbu_OtherNoncontrollingInterests1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Noncontrolling Interests 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherNoncontrollingInterests1" xlink:href="bbu-20260630.xsd#bbu_OtherNoncontrollingInterests1"/>
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    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAxis_019e4af5-e246-77ce-aeb5-ffd356e26ed5_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial assets [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:to="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain_019e4af5-e2ec-7dba-ad57-087645fec030_terseLabel_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services</link:label>
    <link:label id="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain_label_en-US" xlink:label="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Timing of transfer of goods or services [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TimingOfTransferOfGoodsOrServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:to="lab_ifrs-full_TimingOfTransferOfGoodsOrServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PartnerType1Axis_019e4af5-e246-78b7-a344-daca043842ad_terseLabel_en-US" xlink:label="lab_bbu_PartnerType1Axis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Partner Type 1 [Axis]</link:label>
    <link:label id="lab_bbu_PartnerType1Axis_label_en-US" xlink:label="lab_bbu_PartnerType1Axis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Partner Type 1 [Axis]</link:label>
    <link:label id="lab_bbu_PartnerType1Axis_documentation_en-US" xlink:label="lab_bbu_PartnerType1Axis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Partner Type 1 [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PartnerType1Axis" xlink:href="bbu-20260630.xsd#bbu_PartnerType1Axis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PartnerType1Axis" xlink:to="lab_bbu_PartnerType1Axis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_019e4af5-e2ec-7482-b089-f8cc551a901e_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation and other</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NonCurrentBorrowingsCorporate_019e4af5-e246-7248-81e0-68e2260fcd30_terseLabel_en-US" xlink:label="lab_bbu_NonCurrentBorrowingsCorporate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate borrowings</link:label>
    <link:label id="lab_bbu_NonCurrentBorrowingsCorporate_label_en-US" xlink:label="lab_bbu_NonCurrentBorrowingsCorporate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non Current Borrowings, Corporate</link:label>
    <link:label id="lab_bbu_NonCurrentBorrowingsCorporate_documentation_en-US" xlink:label="lab_bbu_NonCurrentBorrowingsCorporate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non Current Borrowings, Corporate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NonCurrentBorrowingsCorporate" xlink:href="bbu-20260630.xsd#bbu_NonCurrentBorrowingsCorporate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NonCurrentBorrowingsCorporate" xlink:to="lab_bbu_NonCurrentBorrowingsCorporate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProductsAndServicesAxis_019e4af5-e2ed-7b04-8009-7aab04b99151_terseLabel_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Products and services [axis]</link:label>
    <link:label id="lab_ifrs-full_ProductsAndServicesAxis_label_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Products and services [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProductsAndServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProductsAndServicesAxis" xlink:to="lab_ifrs-full_ProductsAndServicesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOtherAssetsExplanatory_019e4af5-e246-7dd4-9e86-c53845d0a5f0_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">OTHER ASSETS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOtherAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_019e4af5-e2ec-7fa3-afa6-c83e2e039d46_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FAIR VALUE OF FINANCIAL INSTRUMENTS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract_019e4af5-e2ec-7d2d-bfb8-489019bb00ab_terseLabel_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests attributable to:</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract_label_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Non-controlling Interests [Abstract]</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract_documentation_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Non-controlling Interests [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract" xlink:href="bbu-20260630.xsd#bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract" xlink:to="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilities_019e4af5-e2ec-7662-aa07-06cfcff33704_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilities_019e4af5-e2ec-7c53-a9c3-6145267fa6f8_periodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at beginning of period</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilities_019e4af5-e2ec-753b-ad41-bec8fb3a92d0_periodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at end of period</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilities" xlink:to="lab_ifrs-full_FinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_LimitedPartners1Member_019e4af5-e246-7cbe-bb55-0e77e5966d99_terseLabel_en-US" xlink:label="lab_bbu_LimitedPartners1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class A shareholders</link:label>
    <link:label id="lab_bbu_LimitedPartners1Member_label_en-US" xlink:label="lab_bbu_LimitedPartners1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Partners 1 [Member]</link:label>
    <link:label id="lab_bbu_LimitedPartners1Member_documentation_en-US" xlink:label="lab_bbu_LimitedPartners1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Limited Partners 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_LimitedPartners1Member" xlink:href="bbu-20260630.xsd#bbu_LimitedPartners1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_LimitedPartners1Member" xlink:to="lab_bbu_LimitedPartners1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfCashFlowStatementExplanatory_019e4af5-e2ec-749a-bd7b-b05f432bbef3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SUPPLEMENTAL CASH FLOW INFORMATION</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfCashFlowStatementExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of cash flow statement [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCashFlowStatementExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:to="lab_ifrs-full_DisclosureOfCashFlowStatementExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_019e4af5-e246-7c17-b770-788791a43497_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SUBSEQUENT EVENTS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of events after reporting period [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory_019e4af5-e2ec-782a-9150-f7256b11a259_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">MATERIAL ACCOUNTING POLICY INFORMATION</link:label>
    <link:label id="lab_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory_label_en-US" xlink:label="lab_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of significant accounting policies [text block]</link:label>
    <link:label id="lab_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory_documentation_en-US" xlink:label="lab_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The entire disclosure for significant accounting policies applied by the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" xlink:to="lab_bbu_DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities_019e4af5-e246-7303-865d-1eb2fe7cdd19_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets and other</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales or maturity of financial instruments, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherReceivables_019e4af5-e2ec-7b24-9d20-12d60ec9a72d_totalLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherReceivables_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherReceivables" xlink:to="lab_ifrs-full_TradeAndOtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_019e4af5-e2ec-7921-b4e7-235f58026d98_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SubcontractorAndConsultantCosts_019e4af5-e246-7558-97ca-e7bf9ce81408_terseLabel_en-US" xlink:label="lab_bbu_SubcontractorAndConsultantCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subcontractor and consultant costs</link:label>
    <link:label id="lab_bbu_SubcontractorAndConsultantCosts_label_en-US" xlink:label="lab_bbu_SubcontractorAndConsultantCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subcontractor And Consultant Costs</link:label>
    <link:label id="lab_bbu_SubcontractorAndConsultantCosts_documentation_en-US" xlink:label="lab_bbu_SubcontractorAndConsultantCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Subcontractor And Consultant Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SubcontractorAndConsultantCosts" xlink:href="bbu-20260630.xsd#bbu_SubcontractorAndConsultantCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SubcontractorAndConsultantCosts" xlink:to="lab_bbu_SubcontractorAndConsultantCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019e4af5-e2ec-71ab-bb7f-4b9eed45e687_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity accounted income (loss)</link:label>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019e4af5-e2ec-7bdc-8989-6da4b41fb19d_verboseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Share of net income (loss)</link:label>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of profit (loss) of associates and joint ventures accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract_019e4af5-e2ec-79a9-b6c8-4e5a77a8ff8d_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous non-current assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousNoncurrentAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:to="lab_ifrs-full_MiscellaneousNoncurrentAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member_019e4af5-e246-7db7-9d7d-57d821834cae_terseLabel_en-US" xlink:label="lab_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disposal group, disposed of by sale, not discontinued operations</link:label>
    <link:label id="lab_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member_label_en-US" xlink:label="lab_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Group, Disposed Of By Sale, Not Discontinued Operations1 [Member]</link:label>
    <link:label id="lab_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member_documentation_en-US" xlink:label="lab_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposal Group, Disposed of by Sale, Not Discontinued Operations1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member" xlink:href="bbu-20260630.xsd#bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member" xlink:to="lab_bbu_DisposalGroupDisposedOfBySaleNotDiscontinuedOperations1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ConstructionContractsAbstract_019e4af5-e2ed-7cc4-90c7-82a180e8af27_terseLabel_en-US" xlink:label="lab_bbu_ConstructionContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Construction Contracts [Abstract]</link:label>
    <link:label id="lab_bbu_ConstructionContractsAbstract_label_en-US" xlink:label="lab_bbu_ConstructionContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction Contracts [Abstract]</link:label>
    <link:label id="lab_bbu_ConstructionContractsAbstract_documentation_en-US" xlink:label="lab_bbu_ConstructionContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Construction Contracts [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ConstructionContractsAbstract" xlink:href="bbu-20260630.xsd#bbu_ConstructionContractsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ConstructionContractsAbstract" xlink:to="lab_bbu_ConstructionContractsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations_019e4af5-e2ec-71ed-86c1-ab8463dabd87_terseLabel_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain (loss) on dispositions, net</link:label>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations_label_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Disposals Of Noncurrent Assets, Excluding Amounts Previously Recognized In Funds From Operations</link:label>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations_documentation_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Disposals Of Noncurrent Assets, Excluding Amounts Previously Recognized In Funds From Operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations" xlink:href="bbu-20260630.xsd#bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations" xlink:to="lab_bbu_GainsLossesOnDisposalsOfNoncurrentAssetsExcludingAmountsPreviouslyRecognizedInFundsFromOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_AtApril272025Member_019e4af5-e2ec-7e69-ac92-79c99b5253ca_terseLabel_en-US" xlink:label="lab_bbu_AtApril272025Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">At April 27, 2025</link:label>
    <link:label id="lab_bbu_AtApril272025Member_label_en-US" xlink:label="lab_bbu_AtApril272025Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">At April 27, 2025 [Member]</link:label>
    <link:label id="lab_bbu_AtApril272025Member_documentation_en-US" xlink:label="lab_bbu_AtApril272025Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">At April 27, 2025</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_AtApril272025Member" xlink:href="bbu-20260630.xsd#bbu_AtApril272025Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_AtApril272025Member" xlink:to="lab_bbu_AtApril272025Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SellingGeneralAndAdministrativeExpense_019e4af5-e2ec-7e00-adb8-f2cc0da10ac5_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">General and administrative expenses</link:label>
    <link:label id="lab_ifrs-full_SellingGeneralAndAdministrativeExpense_label_en-US" xlink:label="lab_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, general and administrative expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SellingGeneralAndAdministrativeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:to="lab_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_019e4af5-e2ed-7658-9dcd-9b81ac31f7cd_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities_019e4af5-e246-73a7-8891-27f6519b6fc6_terseLabel_en-US" xlink:label="lab_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from other financing</link:label>
    <link:label id="lab_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds From Borrowings, Other, Classified As Financing Activities</link:label>
    <link:label id="lab_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities_documentation_en-US" xlink:label="lab_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Proceeds From Borrowings, Other, Classified As Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities" xlink:href="bbu-20260630.xsd#bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities" xlink:to="lab_bbu_ProceedsFromBorrowingsOtherClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncome_019e4af5-e246-75e6-b486-1f0d5e6e968e_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Current</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxExpenseIncome" xlink:to="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_019e4af5-e245-7a52-ad00-a286df04b551_terseLabel_en-US" xlink:label="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-adjusting events after reporting period [axis]</link:label>
    <link:label id="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_label_en-US" xlink:label="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-adjusting events after reporting period [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_019e4af5-e2ec-7af2-9238-a35e2d21aa67_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets held for sale</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_label_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current assets or disposal groups classified as held for sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:to="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_019e4af5-e2ed-7652-813a-0a238452328f_terseLabel_en-US" xlink:label="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-adjusting events after reporting period</link:label>
    <link:label id="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain_label_en-US" xlink:label="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-adjusting events after reporting period [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:to="lab_ifrs-full_NonadjustingEventsAfterReportingPeriodDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock_019e4af5-e246-7361-9d9f-9749777bbd04_terseLabel_en-US" xlink:label="lab_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DISPOSITIONS</link:label>
    <link:label id="lab_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock_label_en-US" xlink:label="lab_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Of Noncurrent Assets Or Disposal Groups [Text Block]</link:label>
    <link:label id="lab_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock_documentation_en-US" xlink:label="lab_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposal Of Noncurrent Assets Or Disposal Groups [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock" xlink:to="lab_bbu_DisposalOfNoncurrentAssetsOrDisposalGroupsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_019e4af5-e2ed-7c67-a2bb-8db79d13ab96_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="lab_ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CashAndCashEquivalents1Member_019e4af5-e246-7383-a476-ce2dcd95abbe_terseLabel_en-US" xlink:label="lab_bbu_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_bbu_CashAndCashEquivalents1Member_label_en-US" xlink:label="lab_bbu_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents 1 [Member]</link:label>
    <link:label id="lab_bbu_CashAndCashEquivalents1Member_documentation_en-US" xlink:label="lab_bbu_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CashAndCashEquivalents1Member" xlink:href="bbu-20260630.xsd#bbu_CashAndCashEquivalents1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CashAndCashEquivalents1Member" xlink:to="lab_bbu_CashAndCashEquivalents1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGoodwillExplanatory_019e4af5-e2ec-7ab2-b2a0-899ecf83d3ba_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GOODWILL</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_019e4af5-e2ed-7b53-840c-014b0984a279_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity accounted investments</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales of investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_019e4af5-e2ed-7af2-8478-edaa8d65032c_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Taxes on the above items</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income tax relating to components of other comprehensive income that will be reclassified to profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:to="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_country_GB_019e4af5-e2ed-7660-8739-c40002e5b1ea_terseLabel_en-US" xlink:label="lab_country_GB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">United Kingdom</link:label>
    <link:label id="lab_country_GB_label_en-US" xlink:label="lab_country_GB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED KINGDOM</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_GB" xlink:to="lab_country_GB" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders_019e4af5-e2ec-7761-b2d9-8cce23e6f8bd_negatedTerseLabel_en-US" xlink:label="lab_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions to Class A shareholders</link:label>
    <link:label id="lab_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders_label_en-US" xlink:label="lab_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Paid To Limited Partners And Redemption Exchange Unitholders</link:label>
    <link:label id="lab_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders_documentation_en-US" xlink:label="lab_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dividends Paid To Limited Partners And Redemption Exchange Unitholders</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders" xlink:href="bbu-20260630.xsd#bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders" xlink:to="lab_bbu_DividendsPaidToLimitedPartnersAndRedemptionExchangeUnitholders" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_StatementScenarioAxis_019e4af5-e245-74c3-874e-26b1fd031d24_terseLabel_en-US" xlink:label="lab_srt_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:label id="lab_srt_StatementScenarioAxis_label_en-US" xlink:label="lab_srt_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StatementScenarioAxis" xlink:to="lab_srt_StatementScenarioAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Goodwill_019e4af5-e245-7eb3-a96d-5c8eae11063c_terseLabel_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_Goodwill_label_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Goodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Goodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Goodwill" xlink:to="lab_ifrs-full_Goodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherNoncurrentAssets_019e4af5-e2ec-7058-a322-5a9078271ed6_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_ifrs-full_OtherNoncurrentAssets_019e4af5-e2ec-76e7-b40d-a7be5f28be64_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total non-current</link:label>
    <link:label id="lab_ifrs-full_OtherNoncurrentAssets_label_en-US" xlink:label="lab_ifrs-full_OtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherNoncurrentAssets" xlink:to="lab_ifrs-full_OtherNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherFinancialLiabilitiesMember_019e4af5-e246-70ac-b86f-9a100afcb9f1_terseLabel_en-US" xlink:label="lab_bbu_OtherFinancialLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial liabilities</link:label>
    <link:label id="lab_bbu_OtherFinancialLiabilitiesMember_label_en-US" xlink:label="lab_bbu_OtherFinancialLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Liabilities [Member]</link:label>
    <link:label id="lab_bbu_OtherFinancialLiabilitiesMember_documentation_en-US" xlink:label="lab_bbu_OtherFinancialLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Financial Liabilities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherFinancialLiabilitiesMember" xlink:href="bbu-20260630.xsd#bbu_OtherFinancialLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OtherFinancialLiabilitiesMember" xlink:to="lab_bbu_OtherFinancialLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_019e4af5-e2ec-7665-b69a-e9561061988e_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
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    <link:label id="lab_srt_ProductOrServiceAxis_019f1cd5-62c4-7d76-8075-0c62fa187442_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:label id="lab_srt_ProductOrServiceAxis_label_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductOrServiceAxis" xlink:to="lab_srt_ProductOrServiceAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember_019e4af5-e245-7c78-b42e-76e63fb4455f_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FVOCI</link:label>
    <link:label id="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember_label_en-US" xlink:label="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of gains and losses on financial assets measured at fair value through other comprehensive income [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:to="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsAxis_019e4af5-e245-75b9-af9b-3e42c15112d0_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial assets [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis_019e4af5-e2ed-79b6-8adb-645027783a89_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale [axis]</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_019e4af5-e2ed-755b-87e4-8c369b4677f4_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill"/>
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    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_019e4af5-e2ec-761d-b598-123d012ac6be_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Taxes on the above items</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:to="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeStatementAbstract_019e4af5-e2ed-71e9-9237-af1f93e6dea1_terseLabel_en-US" xlink:label="lab_ifrs-full_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit or loss [abstract]</link:label>
    <link:label id="lab_ifrs-full_IncomeStatementAbstract_label_en-US" xlink:label="lab_ifrs-full_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeStatementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeStatementAbstract"/>
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    <link:label id="lab_ifrs-full_CurrentContractLiabilities_019e4af5-e2ed-7230-a725-4dcd9384a468_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Work in progress</link:label>
    <link:label id="lab_ifrs-full_CurrentContractLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current contract liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentContractLiabilities"/>
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    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable_019e4af5-e245-785e-ae5a-0bcbcf11e3e4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of single amount of discontinued operations [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfSingleAmountOfDiscontinuedOperationsTable"/>
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    <link:label id="lab_bbu_AssociatesOfOperatingSubsidiariesMember_019f1cf1-71a4-7f64-a40c-cf89f32f4e70_terseLabel_en-US" xlink:label="lab_bbu_AssociatesOfOperatingSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Associates of operating subsidiaries</link:label>
    <link:label id="lab_bbu_AssociatesOfOperatingSubsidiariesMember_label_en-US" xlink:label="lab_bbu_AssociatesOfOperatingSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Associates of Operating Subsidiaries [Member]</link:label>
    <link:label id="lab_bbu_AssociatesOfOperatingSubsidiariesMember_documentation_en-US" xlink:label="lab_bbu_AssociatesOfOperatingSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Associates of Operating Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_AssociatesOfOperatingSubsidiariesMember" xlink:href="bbu-20260630.xsd#bbu_AssociatesOfOperatingSubsidiariesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_AssociatesOfOperatingSubsidiariesMember" xlink:to="lab_bbu_AssociatesOfOperatingSubsidiariesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019e4af5-e2ec-7d44-acaa-ebd0c1fd8ce0_terseLabel_en-US" xlink:label="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</link:label>
    <link:label id="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_label_en-US" xlink:label="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfAssetsAxis_019e4af5-e246-7114-8dc4-316b4c9da133_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of assets [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OperatingSegmentsMember_019e4af5-e245-77a4-beaf-780d06495674_terseLabel_en-US" xlink:label="lab_ifrs-full_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating segments</link:label>
    <link:label id="lab_ifrs-full_OperatingSegmentsMember_label_en-US" xlink:label="lab_ifrs-full_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating segments [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingSegmentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingSegmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingSegmentsMember" xlink:to="lab_ifrs-full_OperatingSegmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory_019e4af5-e2ec-78d5-9dd8-502644361ef0_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of significant unobservable inputs used and change in balance of financial assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of significant unobservable inputs used in fair value measurement of assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsByNameDomain_019e4af5-e2ed-773f-b6bd-36f833afc452_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings by name [domain]</link:label>
    <link:label id="lab_ifrs-full_BorrowingsByNameDomain_label_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings by name [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameDomain" xlink:to="lab_ifrs-full_BorrowingsByNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherRelatedPartiesMember_019e4af5-e2ed-708b-bded-f02fe3170dbf_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherRelatedPartiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_ifrs-full_OtherRelatedPartiesMember_label_en-US" xlink:label="lab_ifrs-full_OtherRelatedPartiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other related parties [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherRelatedPartiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherRelatedPartiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherRelatedPartiesMember" xlink:to="lab_ifrs-full_OtherRelatedPartiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeReceivablesMember_019e4af5-e2ec-7a96-8f1e-c6de65f7badd_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts and other receivable, net (current and non-current)</link:label>
    <link:label id="lab_ifrs-full_TradeReceivablesMember_label_en-US" xlink:label="lab_ifrs-full_TradeReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade receivables [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeReceivablesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeReceivablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeReceivablesMember" xlink:to="lab_ifrs-full_TradeReceivablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019e4af5-e245-7a1d-912c-813b39005827_negatedLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Impairment reversal (expense), net</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019e4af5-e245-7e1f-bc03-232e6e2789b7_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Impairment reversal (expense), net</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromContractsWithCustomers_019e4af5-e246-7de0-912b-236bb370912a_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenues from contracts with customers</link:label>
    <link:label id="lab_ifrs-full_RevenueFromContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromContractsWithCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromContractsWithCustomers" xlink:to="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NoncontrollingInterestsAbstract_019e4af5-e2ec-7e8f-9936-67ce8ae456d1_verboseLabel_en-US" xlink:label="lab_bbu_NoncontrollingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests attributable to:</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestsAbstract_019e4af5-e2ec-7ad9-8bea-3380968ceca2_terseLabel_en-US" xlink:label="lab_bbu_NoncontrollingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests attributable to:</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestsAbstract_label_en-US" xlink:label="lab_bbu_NoncontrollingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interests [Abstract]</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestsAbstract_documentation_en-US" xlink:label="lab_bbu_NoncontrollingInterestsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Noncontrolling Interests [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncontrollingInterestsAbstract" xlink:href="bbu-20260630.xsd#bbu_NoncontrollingInterestsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NoncontrollingInterestsAbstract" xlink:to="lab_bbu_NoncontrollingInterestsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfEquityAxis_019e4af5-e245-7c69-8ac6-0c08a5699ed4_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of equity [axis]</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfEquityAxis_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of equity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis" xlink:to="lab_ifrs-full_ComponentsOfEquityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_019e4af5-e245-7141-85db-7a920d17ca62_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of financial liabilities classification</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019e4af5-e2ed-7156-8790-f8dc2a1a1609_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilities_019e4af5-e246-760c-aa40-219e95ee54f7_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income tax liabilities</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilities_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxLiabilities" xlink:to="lab_ifrs-full_DeferredTaxLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_019e4af5-e245-71b4-ade4-a1803f5483c2_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income (loss) before income tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_label_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossBeforeTax" xlink:to="lab_ifrs-full_ProfitLossBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019e4af5-e2ed-7b4d-b598-9e66b6f3a0a3_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiaries, net of cash disposed</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from losing control of subsidiaries or other businesses, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_019e4af5-e246-7a60-ba7d-6ca6f731e9c5_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total other comprehensive income (loss)</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_019e4af5-e246-715d-ad40-2116eb02aea3_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss)</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncome" xlink:to="lab_ifrs-full_OtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax_019e4af5-e246-71da-aff6-276fd07b33ca_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income that will not be reclassified to profit or loss, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_JointControlOrSignificantInfluenceMember_019e4af5-e245-79e3-84b2-a5458508af36_terseLabel_en-US" xlink:label="lab_ifrs-full_JointControlOrSignificantInfluenceMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entities with joint control or significant influence</link:label>
    <link:label id="lab_ifrs-full_JointControlOrSignificantInfluenceMember_label_en-US" xlink:label="lab_ifrs-full_JointControlOrSignificantInfluenceMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entities with joint control or significant influence over entity [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_JointControlOrSignificantInfluenceMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointControlOrSignificantInfluenceMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_JointControlOrSignificantInfluenceMember" xlink:to="lab_ifrs-full_JointControlOrSignificantInfluenceMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesAxis_019e4af5-e2ec-72b8-ba26-e830461e15ca_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherDirectCosts_019e4af5-e2ed-73d4-944c-818b2e755098_terseLabel_en-US" xlink:label="lab_bbu_OtherDirectCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other direct costs</link:label>
    <link:label id="lab_bbu_OtherDirectCosts_label_en-US" xlink:label="lab_bbu_OtherDirectCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Direct Costs</link:label>
    <link:label id="lab_bbu_OtherDirectCosts_documentation_en-US" xlink:label="lab_bbu_OtherDirectCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Direct Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherDirectCosts" xlink:href="bbu-20260630.xsd#bbu_OtherDirectCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OtherDirectCosts" xlink:to="lab_bbu_OtherDirectCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_JointVenturesOfOperatingSubsidiariesMember_019f1cf1-1652-779a-b45b-38eb51049a69_terseLabel_en-US" xlink:label="lab_bbu_JointVenturesOfOperatingSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint ventures of operating subsidiaries</link:label>
    <link:label id="lab_bbu_JointVenturesOfOperatingSubsidiariesMember_label_en-US" xlink:label="lab_bbu_JointVenturesOfOperatingSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint Ventures of Operating Subsidiaries [Member]</link:label>
    <link:label id="lab_bbu_JointVenturesOfOperatingSubsidiariesMember_documentation_en-US" xlink:label="lab_bbu_JointVenturesOfOperatingSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Joint Ventures of Operating Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_JointVenturesOfOperatingSubsidiariesMember" xlink:href="bbu-20260630.xsd#bbu_JointVenturesOfOperatingSubsidiariesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_JointVenturesOfOperatingSubsidiariesMember" xlink:to="lab_bbu_JointVenturesOfOperatingSubsidiariesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill_019e4af5-e245-7cf9-8a66-3393ed78cd4c_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Assets reclassified as held for sale</link:label>
    <link:label id="lab_ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease through classified as held for sale, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentTradeReceivables_019e4af5-e245-7fbb-9711-e3c0596038bc_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentTradeReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_ifrs-full_NoncurrentTradeReceivables_label_en-US" xlink:label="lab_ifrs-full_NoncurrentTradeReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current trade receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentTradeReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentTradeReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentTradeReceivables" xlink:to="lab_ifrs-full_NoncurrentTradeReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_RedemptionExchangeUnitsMember_019f1e37-71bd-7d5b-95a2-22e5e5528032_terseLabel_en-US" xlink:label="lab_bbu_RedemptionExchangeUnitsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redemption-Exchange Units</link:label>
    <link:label id="lab_bbu_RedemptionExchangeUnitsMember_label_en-US" xlink:label="lab_bbu_RedemptionExchangeUnitsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Redemption Exchange Units [Member]</link:label>
    <link:label id="lab_bbu_RedemptionExchangeUnitsMember_documentation_en-US" xlink:label="lab_bbu_RedemptionExchangeUnitsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Redemption Exchange Units [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_RedemptionExchangeUnitsMember" xlink:href="bbu-20260630.xsd#bbu_RedemptionExchangeUnitsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_RedemptionExchangeUnitsMember" xlink:to="lab_bbu_RedemptionExchangeUnitsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CashFlowStatementAbstract_019e4af5-e2ec-779c-93a9-3f2aac920cd9_terseLabel_en-US" xlink:label="lab_bbu_CashFlowStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Flow Statement [Abstract]</link:label>
    <link:label id="lab_bbu_CashFlowStatementAbstract_label_en-US" xlink:label="lab_bbu_CashFlowStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Flow Statement [Abstract]</link:label>
    <link:label id="lab_bbu_CashFlowStatementAbstract_documentation_en-US" xlink:label="lab_bbu_CashFlowStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash Flow Statement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CashFlowStatementAbstract" xlink:href="bbu-20260630.xsd#bbu_CashFlowStatementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CashFlowStatementAbstract" xlink:to="lab_bbu_CashFlowStatementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_019e4af5-e2ed-7e4a-b741-c56d55a3b761_totalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Change during the period</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in cash and cash equivalents before effect of exchange rate changes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:to="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_019e4af5-e246-7f94-bb71-f1b3f00f6e87_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization expense</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for depreciation and amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:to="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityInterestsOfAcquirer_019f936d-b3ab-7d53-b204-452df5ddd99f_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityInterestsOfAcquirer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity interests of acquirer</link:label>
    <link:label id="lab_ifrs-full_EquityInterestsOfAcquirer_label_en-US" xlink:label="lab_ifrs-full_EquityInterestsOfAcquirer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity interests of acquirer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInterestsOfAcquirer" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityInterestsOfAcquirer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityInterestsOfAcquirer" xlink:to="lab_ifrs-full_EquityInterestsOfAcquirer" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory_019e4af5-e245-7c30-9c49-c67146e59a5c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of carrying and fair values of financial liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssueOfEquity_019e4af5-e246-767a-97d8-eb9f720c8298_terseLabel_en-US" xlink:label="lab_ifrs-full_IssueOfEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unit issuance</link:label>
    <link:label id="lab_ifrs-full_IssueOfEquity_label_en-US" xlink:label="lab_ifrs-full_IssueOfEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issue of equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssueOfEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssueOfEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssueOfEquity" xlink:to="lab_ifrs-full_IssueOfEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesDomain_019e4af5-e246-7b03-8136-f48817f11db1_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of related parties</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of related parties [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherCurrentAssets_019e4af5-e2ec-7d48-88bf-83006cba0be1_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_ifrs-full_OtherCurrentAssets_019e4af5-e2ec-7181-a0c5-81699281fef6_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current</link:label>
    <link:label id="lab_ifrs-full_OtherCurrentAssets_label_en-US" xlink:label="lab_ifrs-full_OtherCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherCurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherCurrentAssets" xlink:to="lab_ifrs-full_OtherCurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsTable_019e4af5-e246-7081-bcc3-e19940a3a633_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBusinessCombinationsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about business combination [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:to="lab_ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ChemelexMember_019e4af5-e246-7067-beb8-2d70fbfae457_terseLabel_en-US" xlink:label="lab_bbu_ChemelexMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Chemelex</link:label>
    <link:label id="lab_bbu_ChemelexMember_label_en-US" xlink:label="lab_bbu_ChemelexMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Chemelex [Member]</link:label>
    <link:label id="lab_bbu_ChemelexMember_documentation_en-US" xlink:label="lab_bbu_ChemelexMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Chemelex</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ChemelexMember" xlink:href="bbu-20260630.xsd#bbu_ChemelexMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ChemelexMember" xlink:to="lab_bbu_ChemelexMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax_019e4af5-e2ec-74b7-bbdc-6927346875e9_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentReceivables_019e4af5-e246-7960-be47-a3331e89762c_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts and other receivable, net</link:label>
    <link:label id="lab_ifrs-full_NoncurrentReceivables_019e4af5-e246-7d14-bce3-2b0c12466d3a_totalLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total non-current, net</link:label>
    <link:label id="lab_ifrs-full_NoncurrentReceivables_label_en-US" xlink:label="lab_ifrs-full_NoncurrentReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other non-current receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentReceivables" xlink:to="lab_ifrs-full_NoncurrentReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary_019e4af5-e246-761c-b6a9-d746d699477b_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in subsidiary</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary_label_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in subsidiary</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfVotingPowerHeldInSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:to="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrencySwapContractMember_019e4af5-e246-7a06-a07a-d26c12940b9c_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrencySwapContractMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cross currency swaps</link:label>
    <link:label id="lab_ifrs-full_CurrencySwapContractMember_label_en-US" xlink:label="lab_ifrs-full_CurrencySwapContractMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Currency swap contract [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrencySwapContractMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrencySwapContractMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrencySwapContractMember" xlink:to="lab_ifrs-full_CurrencySwapContractMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_SaleOfBusinessRedemptionPeriod_019e4af5-e2ec-727c-a76a-8845bdd1f772_terseLabel_en-US" xlink:label="lab_bbu_SaleOfBusinessRedemptionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redemption period</link:label>
    <link:label id="lab_bbu_SaleOfBusinessRedemptionPeriod_label_en-US" xlink:label="lab_bbu_SaleOfBusinessRedemptionPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale Of Business, Redemption Period</link:label>
    <link:label id="lab_bbu_SaleOfBusinessRedemptionPeriod_documentation_en-US" xlink:label="lab_bbu_SaleOfBusinessRedemptionPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sale Of Business, Redemption Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_SaleOfBusinessRedemptionPeriod" xlink:href="bbu-20260630.xsd#bbu_SaleOfBusinessRedemptionPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_SaleOfBusinessRedemptionPeriod" xlink:to="lab_bbu_SaleOfBusinessRedemptionPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_VariableRate1Axis_019e4af5-e246-7b41-8511-ed1c960f0b2d_terseLabel_en-US" xlink:label="lab_bbu_VariableRate1Axis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Rate 1 [Axis]</link:label>
    <link:label id="lab_bbu_VariableRate1Axis_label_en-US" xlink:label="lab_bbu_VariableRate1Axis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Rate 1 [Axis]</link:label>
    <link:label id="lab_bbu_VariableRate1Axis_documentation_en-US" xlink:label="lab_bbu_VariableRate1Axis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Variable Rate [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_VariableRate1Axis" xlink:href="bbu-20260630.xsd#bbu_VariableRate1Axis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_VariableRate1Axis" xlink:to="lab_bbu_VariableRate1Axis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProductsAndServicesDomain_019e4af5-e246-7ed4-8bb5-787f22282700_terseLabel_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Products and services [domain]</link:label>
    <link:label id="lab_ifrs-full_ProductsAndServicesDomain_label_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Products and services [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProductsAndServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProductsAndServicesDomain" xlink:to="lab_ifrs-full_ProductsAndServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory_019e4af5-e246-7fb4-99f5-cad230f4ac3d_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of segment revenues by type</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory_019e4af5-e246-7830-82a0-f584eb91a2c1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of operating segments</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory_019e4af5-e2ec-7fdf-b50c-4434d9a61b54_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EQUITY</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of issued capital [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIssuedCapitalExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageShares_019e4af5-e2ec-7746-aeac-213bd015858e_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average number of ordinary shares outstanding (in shares)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageShares_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average number of ordinary shares used in calculating basic earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageShares" xlink:to="lab_ifrs-full_WeightedAverageShares" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_019e4af5-e2ec-7fa4-a999-d5e17431a260_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repayment of non-recourse subsidiary borrowings of the Corporation</link:label>
    <link:label id="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of borrowings, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_InsuranceContractsAbstract_019e4af5-e245-75f3-9788-f8826dd12b23_terseLabel_en-US" xlink:label="lab_bbu_InsuranceContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance contracts [Abstract]</link:label>
    <link:label id="lab_bbu_InsuranceContractsAbstract_label_en-US" xlink:label="lab_bbu_InsuranceContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance Contracts [Abstract]</link:label>
    <link:label id="lab_bbu_InsuranceContractsAbstract_documentation_en-US" xlink:label="lab_bbu_InsuranceContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Insurance contracts [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_InsuranceContractsAbstract" xlink:href="bbu-20260630.xsd#bbu_InsuranceContractsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_InsuranceContractsAbstract" xlink:to="lab_bbu_InsuranceContractsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice_019e4af5-e2ec-782d-8d79-35d224021d2d_terseLabel_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Volume-weighted average price (in dollars per share)</link:label>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice_label_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Recognised As Distributions To Owners, Volume Weighted Average Share Price</link:label>
    <link:label id="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice_documentation_en-US" xlink:label="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dividends Recognised As Distributions To Owners, Volume Weighted Average Share Price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice" xlink:href="bbu-20260630.xsd#bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice" xlink:to="lab_bbu_DividendsRecognisedAsDistributionsToOwnersVolumeWeightedAverageSharePrice" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsByNameAxis_019e4af5-e245-7df9-95da-64a3d1e3442d_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings by name [axis]</link:label>
    <link:label id="lab_ifrs-full_BorrowingsByNameAxis_label_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings by name [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameAxis" xlink:to="lab_ifrs-full_BorrowingsByNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_019e4af5-e246-7959-ad49-29fe3faba35b_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Raw materials and consumables</link:label>
    <link:label id="lab_ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies_label_en-US" xlink:label="lab_ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current raw materials and current production supplies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:to="lab_ifrs-full_CurrentRawMaterialsAndCurrentProductionSupplies" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentFinancialAssets_019e4af5-e245-7813-85c5-d0fd87b99674_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_CurrentFinancialAssets_019e4af5-e245-7aae-8a0c-008a4d618cac_totalLabel_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current</link:label>
    <link:label id="lab_ifrs-full_CurrentFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentFinancialAssets" xlink:to="lab_ifrs-full_CurrentFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_019e4af5-e245-7aa5-8d0a-6b0346d0440e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ACCOUNTS PAYABLE AND OTHER</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of trade and other payables [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory"/>
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    <link:label id="lab_ifrs-full_NoncurrentDerivativeFinancialAssets_019e4af5-e2ed-704f-87ea-b912860d8a05_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative assets</link:label>
    <link:label id="lab_ifrs-full_NoncurrentDerivativeFinancialAssets_019e4af5-e2ed-7d54-ad11-438142f8627f_verboseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-current financial asset</link:label>
    <link:label id="lab_ifrs-full_NoncurrentDerivativeFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current derivative financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentDerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentDerivativeFinancialAssets"/>
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    <link:label id="lab_bbu_ClassBSharesMember_019f3c83-0ee1-7776-8fb4-2fd1895ccf32_terseLabel_en-US" xlink:label="lab_bbu_ClassBSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class B shares</link:label>
    <link:label id="lab_bbu_ClassBSharesMember_label_en-US" xlink:label="lab_bbu_ClassBSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class B Shares [Member]</link:label>
    <link:label id="lab_bbu_ClassBSharesMember_documentation_en-US" xlink:label="lab_bbu_ClassBSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Class B Shares</link:label>
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    <link:label id="lab_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions_019e4af5-e2ec-70de-888a-f0aeb355aa30_terseLabel_en-US" xlink:label="lab_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Base management fee, annual percentage</link:label>
    <link:label id="lab_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions_label_en-US" xlink:label="lab_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Base Management Fee, Annual Percentage, Related Party Transactions</link:label>
    <link:label id="lab_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions_documentation_en-US" xlink:label="lab_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Base Management Fee, Annual Percentage, Related Party Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions" xlink:href="bbu-20260630.xsd#bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions" xlink:to="lab_bbu_BaseManagementFeeAnnualPercentageRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_019e4af5-e246-77c3-a8e2-cc98a340dbbe_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of classes of share capital</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [text block]</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable_019e4af5-e246-7f65-9037-037f1cdaddd9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Borrowings_019e4af5-e246-73b0-a774-5e780054fd63_terseLabel_en-US" xlink:label="lab_ifrs-full_Borrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-recourse borrowings</link:label>
    <link:label id="lab_ifrs-full_Borrowings_label_en-US" xlink:label="lab_ifrs-full_Borrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Borrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Borrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Borrowings" xlink:to="lab_ifrs-full_Borrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_IncentiveDistributionThresholdReductionPercentage_019e4af5-e2ec-7cf5-8bd0-482027918050_terseLabel_en-US" xlink:label="lab_bbu_IncentiveDistributionThresholdReductionPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Incentive distribution threshold reduction percentage</link:label>
    <link:label id="lab_bbu_IncentiveDistributionThresholdReductionPercentage_label_en-US" xlink:label="lab_bbu_IncentiveDistributionThresholdReductionPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Incentive Distribution Threshold Reduction Percentage</link:label>
    <link:label id="lab_bbu_IncentiveDistributionThresholdReductionPercentage_documentation_en-US" xlink:label="lab_bbu_IncentiveDistributionThresholdReductionPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Incentive Distribution Threshold Reduction Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IncentiveDistributionThresholdReductionPercentage" xlink:href="bbu-20260630.xsd#bbu_IncentiveDistributionThresholdReductionPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_IncentiveDistributionThresholdReductionPercentage" xlink:to="lab_bbu_IncentiveDistributionThresholdReductionPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations_019e4af5-e246-7224-85d2-9d9160cb1076_terseLabel_en-US" xlink:label="lab_bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income (expense), net</link:label>
    <link:label id="lab_bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations_label_en-US" xlink:label="lab_bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Operating Income (Expense), Previously Recognized In Funds From Operations</link:label>
    <link:label id="lab_bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations_documentation_en-US" xlink:label="lab_bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Operating Income (Expense), Previously Recognized In Funds From Operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations" xlink:href="bbu-20260630.xsd#bbu_OtherOperatingIncomeExpensePreviouslyRecognizedInFundsFromOperations"/>
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    <link:label id="lab_bbu_ConstructionServicesMember_019e4af5-e2ed-7ff2-9e58-92ca7a8d72f9_terseLabel_en-US" xlink:label="lab_bbu_ConstructionServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Construction services</link:label>
    <link:label id="lab_bbu_ConstructionServicesMember_label_en-US" xlink:label="lab_bbu_ConstructionServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction Services [Member]</link:label>
    <link:label id="lab_bbu_ConstructionServicesMember_documentation_en-US" xlink:label="lab_bbu_ConstructionServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Construction Services [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ConstructionServicesMember" xlink:href="bbu-20260630.xsd#bbu_ConstructionServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ConstructionServicesMember" xlink:to="lab_bbu_ConstructionServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinanceLeaseReceivables_019e4af5-e245-7b42-ac0e-970c3eb68e82_terseLabel_en-US" xlink:label="lab_ifrs-full_FinanceLeaseReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Finance lease receivables</link:label>
    <link:label id="lab_ifrs-full_FinanceLeaseReceivables_label_en-US" xlink:label="lab_ifrs-full_FinanceLeaseReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finance lease receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinanceLeaseReceivables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinanceLeaseReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinanceLeaseReceivables" xlink:to="lab_ifrs-full_FinanceLeaseReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_019e4af5-e2ec-7617-9bd1-6f024e422bc4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FINANCIAL ASSETS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities_019e4af5-e2ec-70cd-88bc-422005be9ac1_negatedLabel_en-US" xlink:label="lab_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Repayment of other financing</link:label>
    <link:label id="lab_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments Of Borrowings, Other, Classified As Financing Activities</link:label>
    <link:label id="lab_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities_documentation_en-US" xlink:label="lab_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Repayments Of Borrowings, Other, Classified As Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities" xlink:href="bbu-20260630.xsd#bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities" xlink:to="lab_bbu_RepaymentsOfBorrowingsOtherClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_019e4af5-e2ec-76bd-8044-11bf1e5d5bdf_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of detailed information about property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory"/>
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    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_019e4af5-e2ed-7bf2-9ce9-012906b524fb_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_019e4af5-e2ec-703f-a1cf-3e476c327c1b_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash from (used in) investing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate_019e4af5-e246-7bc3-9d10-4d203cc63e88_terseLabel_en-US" xlink:label="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inventory recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InventoryRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_019e4af5-e2ec-76f4-943c-e8f1e4b154af_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">DERIVATIVE FINANCIAL INSTRUMENTS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of derivative financial instruments [text block]</link:label>
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    <link:label id="lab_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest_019e4af5-e246-7a51-aa7f-23b0ae152d66_terseLabel_en-US" xlink:label="lab_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred securities</link:label>
    <link:label id="lab_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest_label_en-US" xlink:label="lab_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued Capital, Preference Shares, Noncontrolling Interest</link:label>
    <link:label id="lab_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest_documentation_en-US" xlink:label="lab_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Issued Capital, Preference Shares, Noncontrolling Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest" xlink:href="bbu-20260630.xsd#bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest" xlink:to="lab_bbu_IssuedCapitalPreferenceSharesNoncontrollingInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_TaxCreditTransferAgreementAmount_019fcf44-dad0-7378-935f-f7cc40ef1dc3_terseLabel_en-US" xlink:label="lab_bbu_TaxCreditTransferAgreementAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax credit transfer agreement</link:label>
    <link:label id="lab_bbu_TaxCreditTransferAgreementAmount_label_en-US" xlink:label="lab_bbu_TaxCreditTransferAgreementAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Credit Transfer Agreement, Amount</link:label>
    <link:label id="lab_bbu_TaxCreditTransferAgreementAmount_documentation_en-US" xlink:label="lab_bbu_TaxCreditTransferAgreementAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Credit Transfer Agreement, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_TaxCreditTransferAgreementAmount" xlink:href="bbu-20260630.xsd#bbu_TaxCreditTransferAgreementAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_TaxCreditTransferAgreementAmount" xlink:to="lab_bbu_TaxCreditTransferAgreementAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BBHCExchangeableSharesMember_019f1e30-b6f4-7a2b-b410-7a76d9a39dbd_terseLabel_en-US" xlink:label="lab_bbu_BBHCExchangeableSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BBHC exchangeable shares</link:label>
    <link:label id="lab_bbu_BBHCExchangeableSharesMember_label_en-US" xlink:label="lab_bbu_BBHCExchangeableSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BBHC Exchangeable Shares [Member]</link:label>
    <link:label id="lab_bbu_BBHCExchangeableSharesMember_documentation_en-US" xlink:label="lab_bbu_BBHCExchangeableSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BBHC Exchangeable Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BBHCExchangeableSharesMember" xlink:href="bbu-20260630.xsd#bbu_BBHCExchangeableSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BBHCExchangeableSharesMember" xlink:to="lab_bbu_BBHCExchangeableSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_019e4af5-e2ed-7001-8f25-d4ba1c7ae5d2_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash from (used in) financing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries_019e4af5-e246-7fb0-a549-53b745afd1ba_terseLabel_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred securities</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries_label_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Preferred Equity In Operating Subsidiaries</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries_documentation_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Preferred Equity In Operating Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries" xlink:href="bbu-20260630.xsd#bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries" xlink:to="lab_bbu_ComprehensiveIncomeLossPortionAttributableToPreferredEquityInOperatingSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssets_019e4af5-e245-787d-acdd-daa2c7970f9d_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssets_019e4af5-e245-720b-9016-c7cc61910762_totalLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total non-current</link:label>
    <link:label id="lab_ifrs-full_NoncurrentFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentFinancialAssets" xlink:to="lab_ifrs-full_NoncurrentFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EmployeeBenefitsExpense_019e4af5-e246-7e78-9d0c-c0143ef7a67e_terseLabel_en-US" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation</link:label>
    <link:label id="lab_ifrs-full_EmployeeBenefitsExpense_label_en-US" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee benefits expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EmployeeBenefitsExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EmployeeBenefitsExpense" xlink:to="lab_ifrs-full_EmployeeBenefitsExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_019e4af5-e246-735a-8b2a-6f232c2ee48f_negatedLabel_en-US" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Amortization and impairment expense</link:label>
    <link:label id="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortisation, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities_019e4af5-e246-798d-9522-ab592e5b2704_terseLabel_en-US" xlink:label="lab_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued and other liabilities</link:label>
    <link:label id="lab_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities_label_en-US" xlink:label="lab_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current Accrued Expenses And Other Non-current Liabilities</link:label>
    <link:label id="lab_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities_documentation_en-US" xlink:label="lab_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-current Accrued Expenses And Other Non-current Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities" xlink:href="bbu-20260630.xsd#bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities" xlink:to="lab_bbu_NoncurrentAccruedExpensesAndOtherNoncurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets_019e4af5-e2ed-720b-8a5f-d3c3ce13dfe0_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain (loss) on dispositions, net</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on disposals of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:to="lab_ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PreferenceSharesMember_019e4af5-e246-7621-b000-1db45d1f268d_terseLabel_en-US" xlink:label="lab_ifrs-full_PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference shares</link:label>
    <link:label id="lab_ifrs-full_PreferenceSharesMember_label_en-US" xlink:label="lab_ifrs-full_PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference shares [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PreferenceSharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PreferenceSharesMember" xlink:to="lab_ifrs-full_PreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_HealthcareServicesOperationsMember_019f1cd5-62c4-72c4-aa3e-375a7082b820_terseLabel_en-US" xlink:label="lab_bbu_HealthcareServicesOperationsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Healthcare Services Operations</link:label>
    <link:label id="lab_bbu_HealthcareServicesOperationsMember_label_en-US" xlink:label="lab_bbu_HealthcareServicesOperationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Healthcare Services Operations [Member]</link:label>
    <link:label id="lab_bbu_HealthcareServicesOperationsMember_documentation_en-US" xlink:label="lab_bbu_HealthcareServicesOperationsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Healthcare Services Operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_HealthcareServicesOperationsMember" xlink:href="bbu-20260630.xsd#bbu_HealthcareServicesOperationsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_HealthcareServicesOperationsMember" xlink:to="lab_bbu_HealthcareServicesOperationsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FairValueHedgesMember_019e4af5-e2ec-78ea-a8c4-ff57cee15eaf_terseLabel_en-US" xlink:label="lab_ifrs-full_FairValueHedgesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value hedges</link:label>
    <link:label id="lab_ifrs-full_FairValueHedgesMember_label_en-US" xlink:label="lab_ifrs-full_FairValueHedgesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value hedges [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FairValueHedgesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FairValueHedgesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FairValueHedgesMember" xlink:to="lab_ifrs-full_FairValueHedgesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_019e4af5-e246-700d-90d6-3cfe04359034_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Changes in non-cash working capital, net</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_019e4af5-e246-7f6d-97d0-b0722c789c85_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Changes in non-cash working capital, net</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in working capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentAssets_019e4af5-e2ed-7513-9542-499038eb0d5e_totalLabel_en-US" xlink:label="lab_ifrs-full_CurrentAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Current assets</link:label>
    <link:label id="lab_ifrs-full_CurrentAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentAssets" xlink:to="lab_ifrs-full_CurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_019e4af5-e2ec-7139-a644-6aed3fa1678a_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated depreciation and impairment</link:label>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_019e4af5-e2ec-7f17-b567-b4a69c102597_verboseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated amortization and impairment</link:label>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_label_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated depreciation, amortisation and impairment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:to="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries_019e4af5-e2ed-7f60-a433-9871810096c9_terseLabel_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest of others in operating subsidiaries</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries_label_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest In Net Income (Loss), Interest Of Others In Operating Subsidiaries</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries_documentation_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest In Net Income (Loss), Interest Of Others In Operating Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries" xlink:href="bbu-20260630.xsd#bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries" xlink:to="lab_bbu_NoncontrollingInterestInNetIncomeLossInterestOfOthersInOperatingSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsTable_019e4af5-e246-7018-9d1d-8664cdba046a_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityTable_019e4af5-e2ec-775c-91c6-2b97244ce4b0_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [table]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityTable_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:to="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GoodsOrServicesTransferredOverTimeMember_019e4af5-e246-70fb-b19a-64b1a90db04e_terseLabel_en-US" xlink:label="lab_ifrs-full_GoodsOrServicesTransferredOverTimeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Services transferred over a period of time</link:label>
    <link:label id="lab_ifrs-full_GoodsOrServicesTransferredOverTimeMember_label_en-US" xlink:label="lab_ifrs-full_GoodsOrServicesTransferredOverTimeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goods or services transferred over time [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GoodsOrServicesTransferredOverTimeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodsOrServicesTransferredOverTimeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GoodsOrServicesTransferredOverTimeMember" xlink:to="lab_ifrs-full_GoodsOrServicesTransferredOverTimeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DistributionToSpecialLimitedPartner_019e4af5-e245-74df-932f-fb14e54a4833_negatedTerseLabel_en-US" xlink:label="lab_bbu_DistributionToSpecialLimitedPartner" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions to preferred securities holders</link:label>
    <link:label id="lab_bbu_DistributionToSpecialLimitedPartner_label_en-US" xlink:label="lab_bbu_DistributionToSpecialLimitedPartner" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Distribution To Special Limited Partner</link:label>
    <link:label id="lab_bbu_DistributionToSpecialLimitedPartner_documentation_en-US" xlink:label="lab_bbu_DistributionToSpecialLimitedPartner" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distribution To Special Limited Partner</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DistributionToSpecialLimitedPartner" xlink:href="bbu-20260630.xsd#bbu_DistributionToSpecialLimitedPartner"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DistributionToSpecialLimitedPartner" xlink:to="lab_bbu_DistributionToSpecialLimitedPartner" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentsAxis_019e4af5-e2ed-7791-8c0a-de0d27a0e100_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [axis]</link:label>
    <link:label id="lab_ifrs-full_SegmentsAxis_label_en-US" xlink:label="lab_ifrs-full_SegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsAxis" xlink:to="lab_ifrs-full_SegmentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_PreferredSecuritiesHeldByBrookfieldMember_019e4af5-e2ec-7b3d-82ca-234187765f13_terseLabel_en-US" xlink:label="lab_bbu_PreferredSecuritiesHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred securities</link:label>
    <link:label id="lab_bbu_PreferredSecuritiesHeldByBrookfieldMember_label_en-US" xlink:label="lab_bbu_PreferredSecuritiesHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Securities Held By Brookfield [Member]</link:label>
    <link:label id="lab_bbu_PreferredSecuritiesHeldByBrookfieldMember_documentation_en-US" xlink:label="lab_bbu_PreferredSecuritiesHeldByBrookfieldMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preferred Securities Held By Brookfield [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_PreferredSecuritiesHeldByBrookfieldMember" xlink:href="bbu-20260630.xsd#bbu_PreferredSecuritiesHeldByBrookfieldMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_PreferredSecuritiesHeldByBrookfieldMember" xlink:to="lab_bbu_PreferredSecuritiesHeldByBrookfieldMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_019e4af5-e246-7c83-adcc-c4054c58646a_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-recourse borrowings in subsidiaries of the Corporation</link:label>
    <link:label id="lab_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_019e4af5-e246-7469-b160-6e93f12b72f2_verboseLabel_en-US" xlink:label="lab_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current borrowings and current portion of non-current borrowings</link:label>
    <link:label id="lab_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_label_en-US" xlink:label="lab_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current borrowings and current portion of non-current borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:to="lab_ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfAssetsDomain_019e4af5-e246-7c01-b367-99804134e3fc_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of assets [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsDomain" xlink:to="lab_ifrs-full_ClassesOfAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_019e4af5-e245-77fa-b3fe-acb69fdaa8f9_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_019e4af5-e2ed-7c92-be75-2a3829db96c8_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment and intangible assets</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales of property, plant and equipment, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashEquivalents_019e4af5-e2ec-735a-8239-4d8254ba654d_terseLabel_en-US" xlink:label="lab_ifrs-full_CashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash equivalents</link:label>
    <link:label id="lab_ifrs-full_CashEquivalents_label_en-US" xlink:label="lab_ifrs-full_CashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashEquivalents" xlink:to="lab_ifrs-full_CashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfHedgesDomain_019e4af5-e2ec-7d09-80fc-84106503857b_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of hedges [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfHedgesDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of hedges [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfHedgesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfHedgesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfHedgesDomain" xlink:to="lab_ifrs-full_TypesOfHedgesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries_019e4af5-e2ec-71b6-89ad-96866bdd6903_terseLabel_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest of others in operating subsidiaries</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries_label_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Interest Of Others In Operating Subsidiaries</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries_documentation_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Interest Of Others In Operating Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries" xlink:href="bbu-20260630.xsd#bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries" xlink:to="lab_bbu_ComprehensiveIncomeLossPortionAttributableToInterestOfOthersInOperatingSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019e4af5-e246-7802-8f37-1e6d7db9e85b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable"/>
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    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipment_019e4af5-e246-72ee-b70b-e08551b22ddf_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Depreciation/depletion/impairment expense</link:label>
    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DepreciationPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DividendsPaidToSpecialLPUnitholder_019e4af5-e246-7162-aa93-c1e2258c950f_negatedTerseLabel_en-US" xlink:label="lab_bbu_DividendsPaidToSpecialLPUnitholder" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Distributions to Special shareholder</link:label>
    <link:label id="lab_bbu_DividendsPaidToSpecialLPUnitholder_label_en-US" xlink:label="lab_bbu_DividendsPaidToSpecialLPUnitholder" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Paid To Special LP Unitholder</link:label>
    <link:label id="lab_bbu_DividendsPaidToSpecialLPUnitholder_documentation_en-US" xlink:label="lab_bbu_DividendsPaidToSpecialLPUnitholder" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dividends Paid To Special LP Unitholder</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DividendsPaidToSpecialLPUnitholder" xlink:href="bbu-20260630.xsd#bbu_DividendsPaidToSpecialLPUnitholder"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DividendsPaidToSpecialLPUnitholder" xlink:to="lab_bbu_DividendsPaidToSpecialLPUnitholder" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfHedgesAxis_019e4af5-e246-7aae-8acd-d94fccdcb58a_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of hedges [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfHedgesAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of hedges [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfHedgesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfHedgesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfHedgesAxis" xlink:to="lab_ifrs-full_TypesOfHedgesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesAxis_019e4af5-e2ec-7ff6-a721-431871b093b5_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of related parties [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of related parties [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_019e4af5-e2ec-7da0-9e00-877a726fb00d_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortized cost</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortised cost, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_019e4af5-e2ec-7710-ab19-015d2c375279_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about borrowings [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about borrowings [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_019e4af5-e246-7963-8386-5e6fd93b8131_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortized cost</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_FairValueMeasurementAbstract_019e4af5-e2ec-7d9a-beb4-021778da0a95_terseLabel_en-US" xlink:label="lab_bbu_FairValueMeasurementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Measurement [Abstract]</link:label>
    <link:label id="lab_bbu_FairValueMeasurementAbstract_label_en-US" xlink:label="lab_bbu_FairValueMeasurementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurement [Abstract]</link:label>
    <link:label id="lab_bbu_FairValueMeasurementAbstract_documentation_en-US" xlink:label="lab_bbu_FairValueMeasurementAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value Measurement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_FairValueMeasurementAbstract" xlink:href="bbu-20260630.xsd#bbu_FairValueMeasurementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_FairValueMeasurementAbstract" xlink:to="lab_bbu_FairValueMeasurementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_019e4af5-e245-7b40-8469-8f089fcafe49_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of non-adjusting events after reporting period [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:to="lab_ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities_019f1c82-8475-710d-96ef-bca3d9284c13_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation and other</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss on exchange differences, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossOnExchangeDifferencesFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_019e4af5-e2ec-78cb-9e87-38042ef0df33_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">PROPERTY, PLANT AND EQUIPMENT</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnLitigationSettlements_019f1dcb-9bdb-7858-9964-77bd5b319b89_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnLitigationSettlements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on litigation settlements</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnLitigationSettlements_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnLitigationSettlements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on litigation settlements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnLitigationSettlements" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnLitigationSettlements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnLitigationSettlements" xlink:to="lab_ifrs-full_GainsLossesOnLitigationSettlements" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLoss_019e4af5-e246-780a-9fd2-89152990c320_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_019e4af5-e246-78a5-b7fe-4a18c66a8808_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_019e4af5-e246-7af3-b439-3c1e8b3712f5_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_label_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="lab_ifrs-full_ProfitLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherRevenue_019e4af5-e245-71c6-bf30-2e1f3a5241d7_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherRevenue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other revenues</link:label>
    <link:label id="lab_ifrs-full_OtherRevenue_label_en-US" xlink:label="lab_ifrs-full_OtherRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other revenue</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherRevenue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherRevenue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherRevenue" xlink:to="lab_ifrs-full_OtherRevenue" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalsAccountsPayableAndOtherLiabilities_019e4af5-e2ec-7060-9c19-a2c7c8ab6d03_terseLabel_en-US" xlink:label="lab_bbu_DisposalsAccountsPayableAndOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable and other liabilities derecognized</link:label>
    <link:label id="lab_bbu_DisposalsAccountsPayableAndOtherLiabilities_label_en-US" xlink:label="lab_bbu_DisposalsAccountsPayableAndOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, Accounts Payable And Other Liabilities</link:label>
    <link:label id="lab_bbu_DisposalsAccountsPayableAndOtherLiabilities_documentation_en-US" xlink:label="lab_bbu_DisposalsAccountsPayableAndOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposals, Accounts Payable And Other Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalsAccountsPayableAndOtherLiabilities" xlink:href="bbu-20260630.xsd#bbu_DisposalsAccountsPayableAndOtherLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalsAccountsPayableAndOtherLiabilities" xlink:to="lab_bbu_DisposalsAccountsPayableAndOtherLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssets_019e4af5-e2ec-7da6-8541-9431ecb944f7_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019e4af5-e2ec-77c8-bbf9-725ec08d8753_periodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Financial assets at beginning of period</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019e4af5-e2ec-7177-b9b9-9bb22dd9212b_periodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Financial assets at end of period</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_label_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssets" xlink:to="lab_ifrs-full_FinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_019e4af5-e2ec-72eb-ba23-77e1fa5b1f7c_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalGroupClassification1Axis_019e4af5-e245-7f3d-8cc6-06e233165773_terseLabel_en-US" xlink:label="lab_bbu_DisposalGroupClassification1Axis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disposal Group Classification1 [Axis]</link:label>
    <link:label id="lab_bbu_DisposalGroupClassification1Axis_label_en-US" xlink:label="lab_bbu_DisposalGroupClassification1Axis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Group Classification1 [Axis]</link:label>
    <link:label id="lab_bbu_DisposalGroupClassification1Axis_documentation_en-US" xlink:label="lab_bbu_DisposalGroupClassification1Axis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposal Group Classification1 [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalGroupClassification1Axis" xlink:href="bbu-20260630.xsd#bbu_DisposalGroupClassification1Axis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalGroupClassification1Axis" xlink:to="lab_bbu_DisposalGroupClassification1Axis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfEquityDomain_019e4af5-e2ec-7760-b0e9-a84446dcb7d4_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of equity</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfEquityDomain_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of equity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain" xlink:to="lab_ifrs-full_ComponentsOfEquityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsPaid_019e4af5-e2ec-7400-ba38-12751c29e84c_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends recognised as distributions to owners</link:label>
    <link:label id="lab_ifrs-full_DividendsPaid_label_en-US" xlink:label="lab_ifrs-full_DividendsPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends recognised as distributions to owners</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaid" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaid"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsPaid" xlink:to="lab_ifrs-full_DividendsPaid" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_IncentivePaymentExpense_019f93b0-caf8-7578-bba9-5cb2855e8cc8_terseLabel_en-US" xlink:label="lab_bbu_IncentivePaymentExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Incentive payment expense</link:label>
    <link:label id="lab_bbu_IncentivePaymentExpense_label_en-US" xlink:label="lab_bbu_IncentivePaymentExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Incentive Payment Expense</link:label>
    <link:label id="lab_bbu_IncentivePaymentExpense_documentation_en-US" xlink:label="lab_bbu_IncentivePaymentExpense" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Incentive Payment Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IncentivePaymentExpense" xlink:href="bbu-20260630.xsd#bbu_IncentivePaymentExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_IncentivePaymentExpense" xlink:to="lab_bbu_IncentivePaymentExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems_019e4af5-e246-7f3b-b3c3-c81bb9d38465_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_019e4af5-e245-7a6b-a40b-e9823aba39d1_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment recognised as of acquisition date</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment recognised as of acquisition date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NetUnrealizedRevaluationGainLosses_019e4af5-e2ec-7c7e-9e59-397027442f8d_terseLabel_en-US" xlink:label="lab_bbu_NetUnrealizedRevaluationGainLosses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net unrealized revaluation gain (loss)</link:label>
    <link:label id="lab_bbu_NetUnrealizedRevaluationGainLosses_label_en-US" xlink:label="lab_bbu_NetUnrealizedRevaluationGainLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Unrealized Revaluation Gain (Losses)</link:label>
    <link:label id="lab_bbu_NetUnrealizedRevaluationGainLosses_documentation_en-US" xlink:label="lab_bbu_NetUnrealizedRevaluationGainLosses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net Unrealized Revaluation Gain (Losses)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NetUnrealizedRevaluationGainLosses" xlink:href="bbu-20260630.xsd#bbu_NetUnrealizedRevaluationGainLosses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NetUnrealizedRevaluationGainLosses" xlink:to="lab_bbu_NetUnrealizedRevaluationGainLosses" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfCurrentInventoriesTableTextBlock_019e4af5-e246-793b-ac65-29b8e082dc98_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfCurrentInventoriesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of current inventories</link:label>
    <link:label id="lab_bbu_DisclosureOfCurrentInventoriesTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfCurrentInventoriesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Current Inventories [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfCurrentInventoriesTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfCurrentInventoriesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Current Inventories [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfCurrentInventoriesTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfCurrentInventoriesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfCurrentInventoriesTableTextBlock" xlink:to="lab_bbu_DisclosureOfCurrentInventoriesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract_019e4af5-e246-7fa9-ad88-774b8fa865f8_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of current financial assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract" xlink:to="lab_ifrs-full_CategoriesOfCurrentFinancialAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DispositionsAndDistributionsAbstract_019e4af5-e2ed-7800-aaaa-e1f1a16065f6_terseLabel_en-US" xlink:label="lab_bbu_DispositionsAndDistributionsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dispositions</link:label>
    <link:label id="lab_bbu_DispositionsAndDistributionsAbstract_label_en-US" xlink:label="lab_bbu_DispositionsAndDistributionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dispositions And Distributions [Abstract]</link:label>
    <link:label id="lab_bbu_DispositionsAndDistributionsAbstract_documentation_en-US" xlink:label="lab_bbu_DispositionsAndDistributionsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dispositions And Distributions [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DispositionsAndDistributionsAbstract" xlink:href="bbu-20260630.xsd#bbu_DispositionsAndDistributionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DispositionsAndDistributionsAbstract" xlink:to="lab_bbu_DispositionsAndDistributionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements_019e4af5-e2ec-7b12-9c97-11032a227d26_terseLabel_en-US" xlink:label="lab_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis of presentation</link:label>
    <link:label id="lab_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements_label_en-US" xlink:label="lab_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Explanation of measurement bases used in preparing financial statements [text block]</link:label>
    <link:label id="lab_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements_documentation_en-US" xlink:label="lab_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The explanation of the measurement basis (or bases) used in preparing the financial statements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements" xlink:href="bbu-20260630.xsd#bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements" xlink:to="lab_bbu_ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OperatingSegmentsAbstract_019e4af5-e2ed-7c64-93f9-577d2e3b01c9_terseLabel_en-US" xlink:label="lab_bbu_OperatingSegmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Segments [Abstract]</link:label>
    <link:label id="lab_bbu_OperatingSegmentsAbstract_label_en-US" xlink:label="lab_bbu_OperatingSegmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Segments [Abstract]</link:label>
    <link:label id="lab_bbu_OperatingSegmentsAbstract_documentation_en-US" xlink:label="lab_bbu_OperatingSegmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating Segments [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OperatingSegmentsAbstract" xlink:href="bbu-20260630.xsd#bbu_OperatingSegmentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OperatingSegmentsAbstract" xlink:to="lab_bbu_OperatingSegmentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_019e4af5-e2ec-7d60-a2d6-c59e2c505bf8_periodStartLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_019e4af5-e2ec-7ba6-9a7b-ec39a68605b1_periodEndLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_label_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of shares issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfSharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesIssued" xlink:to="lab_ifrs-full_NumberOfSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_Borrowings1Member_019e4af5-e245-73e5-b47a-dd8d55584b50_terseLabel_en-US" xlink:label="lab_bbu_Borrowings1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings (current and non-current)</link:label>
    <link:label id="lab_bbu_Borrowings1Member_label_en-US" xlink:label="lab_bbu_Borrowings1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings 1 [Member]</link:label>
    <link:label id="lab_bbu_Borrowings1Member_documentation_en-US" xlink:label="lab_bbu_Borrowings1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Borrowings 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_Borrowings1Member" xlink:href="bbu-20260630.xsd#bbu_Borrowings1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_Borrowings1Member" xlink:to="lab_bbu_Borrowings1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems_019e4af5-e2ed-7c5d-87fe-aea1137f1bf0_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]</link:label>
    <link:label id="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems_label_en-US" xlink:label="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items]</link:label>
    <link:label id="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems_documentation_en-US" xlink:label="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Line Items] for Disclosure Of Fair Value Measurement Of Assets And Liabilities [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:to="lab_bbu_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_019e4af5-e2ec-73c2-9c24-7e0ce3f54610_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SEGMENT INFORMATION</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of entity's operating segments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare_019e4af5-e2ed-749d-97c0-930e8e45aadf_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends recognised as distributions to owners per share (in dollars per share)</link:label>
    <link:label id="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare_label_en-US" xlink:label="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends recognised as distributions to owners per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" xlink:to="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized_019e4af5-e2ec-7c8c-b80e-5000686dbf68_terseLabel_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain (loss) on dispositions, net recorded in equity</link:label>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized_label_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Disposals Of Non-Current Assets, Net Recorded In Equity, Unrealized</link:label>
    <link:label id="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized_documentation_en-US" xlink:label="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Disposals Of Non-Current Assets, Net Recorded In Equity, Unrealized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized" xlink:href="bbu-20260630.xsd#bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized" xlink:to="lab_bbu_GainsLossesOnDisposalsOfNonCurrentAssetsNetRecordedInEquityUnrealized" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory_019e4af5-e2ec-744b-ae92-a1ee05904237_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NATURE AND DESCRIPTION OF THE CORPORATION</link:label>
    <link:label id="lab_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory_label_en-US" xlink:label="lab_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of notes and other explanatory information [text block]</link:label>
    <link:label id="lab_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory_documentation_en-US" xlink:label="lab_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of notes and other explanatory information as part of a complete set of financial statements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" xlink:to="lab_bbu_DisclosureOfNotesAndOtherExplanatoryInformationExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayablesAbstract_019e4af5-e245-7e84-94e7-b2cd388991ee_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current</link:label>
    <link:label id="lab_ifrs-full_TradeAndOtherCurrentPayablesAbstract_label_en-US" xlink:label="lab_ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade and other current payables [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:to="lab_ifrs-full_TradeAndOtherCurrentPayablesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RetainedEarningsMember_019e4af5-e2ec-796f-9fcd-f44d951da461_terseLabel_en-US" xlink:label="lab_ifrs-full_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retained earnings</link:label>
    <link:label id="lab_ifrs-full_RetainedEarningsMember_label_en-US" xlink:label="lab_ifrs-full_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained earnings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarningsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetainedEarningsMember" xlink:to="lab_ifrs-full_RetainedEarningsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract_019e4af5-e2ec-72cc-9d28-993d837e7396_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes that relate to future service:</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes that relate to future service, insurance contracts liability (asset) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToFutureServiceInsuranceContractsLiabilityAssetAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable_019e4af5-e246-7a00-bd4d-5cc0b2c3ea5e_terseLabel_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Special shareholder</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable_label_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Noncontrolling Interest, Limited Partnerships, Nonredeemable</link:label>
    <link:label id="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable_documentation_en-US" xlink:label="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Portion Attributable To Noncontrolling Interest, Limited Partnerships, Nonredeemable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable" xlink:href="bbu-20260630.xsd#bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable" xlink:to="lab_bbu_ComprehensiveIncomeLossPortionAttributableToNoncontrollingInterestLimitedPartnershipsNonredeemable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CorporateAndOtherSegmentsMember_019e4af5-e245-72ee-b437-c3baf7779be8_terseLabel_en-US" xlink:label="lab_bbu_CorporateAndOtherSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate and other</link:label>
    <link:label id="lab_bbu_CorporateAndOtherSegmentsMember_label_en-US" xlink:label="lab_bbu_CorporateAndOtherSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate And Other Segments [Member]</link:label>
    <link:label id="lab_bbu_CorporateAndOtherSegmentsMember_documentation_en-US" xlink:label="lab_bbu_CorporateAndOtherSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Corporate And Other Segments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CorporateAndOtherSegmentsMember" xlink:href="bbu-20260630.xsd#bbu_CorporateAndOtherSegmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CorporateAndOtherSegmentsMember" xlink:to="lab_bbu_CorporateAndOtherSegmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents_019e4af5-e245-7560-8816-cc204f6e617d_terseLabel_en-US" xlink:label="lab_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bank overdrafts</link:label>
    <link:label id="lab_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank overdrafts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BankOverdraftsClassifiedAsCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:to="lab_ifrs-full_BankOverdraftsClassifiedAsCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_019e4af5-e2ec-75be-b376-961668d9bc44_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable and other</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries_019e4af5-e246-7cfd-8296-0d349cf8bb2e_terseLabel_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preferred securities</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries_label_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest In Net Income (Loss), Preferred Equity In Operating Subsidiaries</link:label>
    <link:label id="lab_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries_documentation_en-US" xlink:label="lab_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest In Net Income (Loss), Preferred Equity In Operating Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries" xlink:href="bbu-20260630.xsd#bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries" xlink:to="lab_bbu_NoncontrollingInterestInNetIncomeLossPreferredEquityInOperatingSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RecurringFairValueMeasurementMember_019e4af5-e2ec-778b-a100-ef3b9498c74d_terseLabel_en-US" xlink:label="lab_ifrs-full_RecurringFairValueMeasurementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recurring fair value measurement</link:label>
    <link:label id="lab_ifrs-full_RecurringFairValueMeasurementMember_label_en-US" xlink:label="lab_ifrs-full_RecurringFairValueMeasurementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recurring fair value measurement [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecurringFairValueMeasurementMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecurringFairValueMeasurementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RecurringFairValueMeasurementMember" xlink:to="lab_ifrs-full_RecurringFairValueMeasurementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember_019e4af5-e245-756c-8f1e-0809a448745a_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities not classified as held for sale [member]</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities not classified as held for sale [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:to="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ScenarioUnspecifiedDomain_019e4af5-e2ec-7c8a-840a-f3c955d5d905_terseLabel_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scenario [Domain]</link:label>
    <link:label id="lab_srt_ScenarioUnspecifiedDomain_label_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScenarioUnspecifiedDomain" xlink:to="lab_srt_ScenarioUnspecifiedDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract_019e4af5-e246-74c3-9561-56605e741897_terseLabel_en-US" xlink:label="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Analysis of income and expense [abstract]</link:label>
    <link:label id="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Analysis of income and expense [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AnalysisOfIncomeAndExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountsPayableRelatedPartyTransactions_019e4af5-e245-7d9b-b242-bd97522bf4e9_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable and other</link:label>
    <link:label id="lab_ifrs-full_AmountsPayableRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts payable, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsPayableRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:to="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_019e4af5-e2ec-7c81-a826-ce670cfd4d40_terseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization expense</link:label>
    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_019e4af5-e2ec-79d1-bd60-d0d18bbb089e_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization expense</link:label>
    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_label_en-US" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation and amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationAndAmortisationExpense" xlink:to="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_FundsFromOperationsAttributableToParent_019e4af5-e245-7a12-8032-f00e3a5a9814_totalLabel_en-US" xlink:label="lab_bbu_FundsFromOperationsAttributableToParent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Adjusted EFO</link:label>
    <link:label id="lab_bbu_FundsFromOperationsAttributableToParent_label_en-US" xlink:label="lab_bbu_FundsFromOperationsAttributableToParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Funds From Operations Attributable To Parent</link:label>
    <link:label id="lab_bbu_FundsFromOperationsAttributableToParent_documentation_en-US" xlink:label="lab_bbu_FundsFromOperationsAttributableToParent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Funds From Operations Attributable To Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_FundsFromOperationsAttributableToParent" xlink:href="bbu-20260630.xsd#bbu_FundsFromOperationsAttributableToParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_FundsFromOperationsAttributableToParent" xlink:to="lab_bbu_FundsFromOperationsAttributableToParent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ConstructionInProgress_019e4af5-e2ec-7651-b49b-cc5ce32790de_totalLabel_en-US" xlink:label="lab_ifrs-full_ConstructionInProgress" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Contract costs incurred to date</link:label>
    <link:label id="lab_ifrs-full_ConstructionInProgress_label_en-US" xlink:label="lab_ifrs-full_ConstructionInProgress" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction in progress</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ConstructionInProgress" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConstructionInProgress"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ConstructionInProgress" xlink:to="lab_ifrs-full_ConstructionInProgress" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ForeignCurrencyForwardContractsMember_019e4af5-e2ec-7b5c-bdc7-eb27fe089439_terseLabel_en-US" xlink:label="lab_bbu_ForeignCurrencyForwardContractsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign exchange contracts</link:label>
    <link:label id="lab_bbu_ForeignCurrencyForwardContractsMember_label_en-US" xlink:label="lab_bbu_ForeignCurrencyForwardContractsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign Currency Forward Contracts [Member]</link:label>
    <link:label id="lab_bbu_ForeignCurrencyForwardContractsMember_documentation_en-US" xlink:label="lab_bbu_ForeignCurrencyForwardContractsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Foreign Currency Forward Contracts [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ForeignCurrencyForwardContractsMember" xlink:href="bbu-20260630.xsd#bbu_ForeignCurrencyForwardContractsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ForeignCurrencyForwardContractsMember" xlink:to="lab_bbu_ForeignCurrencyForwardContractsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesAbstract_019e4af5-e2ec-701f-b77f-31e5ea3a2ce9_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Liabilities</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesAbstract" xlink:to="lab_ifrs-full_LiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentFinancialLiabilities_019e4af5-e246-72e8-bc99-db12662abd3c_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:label id="lab_ifrs-full_NoncurrentFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_NoncurrentFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentFinancialLiabilities" xlink:to="lab_ifrs-full_NoncurrentFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract_019e4af5-e2ec-74be-bfa7-71315f060466_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes that relate to past services:</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through insurance service expenses, insurance contracts liability (asset) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughInsuranceServiceExpensesInsuranceContractsLiabilityAssetAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_019e4af5-e2ec-774f-956e-020607dfa9fa_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Marketable securities</link:label>
    <link:label id="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current financial assets at fair value through profit or loss, classified as held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:to="lab_ifrs-full_CurrentFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract_019e4af5-e2ec-7fcc-b01a-8597af3010b9_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes that relate to current service:</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes that relate to current service, insurance contracts liability (asset) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughChangesThatRelateToCurrentServiceInsuranceContractsLiabilityAssetAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsDomain_019e4af5-e246-72a4-8118-20cf4262c98f_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial assets [domain]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:to="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock_019e4af5-e2ec-7dcd-a9ad-8e4dcd47fc0c_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of liabilities under insurance contracts</link:label>
    <link:label id="lab_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Liabilities Under Insurance Contracts [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of liabilities under insurance contracts [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock" xlink:to="lab_bbu_DisclosureOfLiabilitiesUnderInsuranceContractsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CarryingAmountMember_019e4af5-e246-718b-8318-21a0e1fbc519_terseLabel_en-US" xlink:label="lab_ifrs-full_CarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount [member]</link:label>
    <link:label id="lab_ifrs-full_CarryingAmountMember_label_en-US" xlink:label="lab_ifrs-full_CarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Carrying amount [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountMember" xlink:to="lab_ifrs-full_CarryingAmountMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan_019e4af5-e246-794d-808a-faa8c2235f14_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current net defined benefit liability</link:label>
    <link:label id="lab_ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan_label_en-US" xlink:label="lab_ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current net defined benefit liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:to="lab_ifrs-full_CurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentDerivativeFinancialAssets_019e4af5-e2ed-72ec-a641-9d93161e77ff_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentDerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative assets</link:label>
    <link:label id="lab_ifrs-full_CurrentDerivativeFinancialAssets_019e4af5-e2ed-7a24-9b14-5f91e3bea24c_verboseLabel_en-US" xlink:label="lab_ifrs-full_CurrentDerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current financial assets</link:label>
    <link:label id="lab_ifrs-full_CurrentDerivativeFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentDerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current derivative financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentDerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentDerivativeFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentDerivativeFinancialAssets" xlink:to="lab_ifrs-full_CurrentDerivativeFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges_019e4af5-e2ed-7bb3-8bf1-b5100f314e61_terseLabel_en-US" xlink:label="lab_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net investment and cash flow hedges</link:label>
    <link:label id="lab_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges_label_en-US" xlink:label="lab_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income, Before Tax, Cash Flow And Net Investment Hedges</link:label>
    <link:label id="lab_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges_documentation_en-US" xlink:label="lab_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income, Before Tax, Cash Flow And Net Investment Hedges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges" xlink:href="bbu-20260630.xsd#bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges" xlink:to="lab_bbu_OtherComprehensiveIncomeBeforeTaxCashFlowAndNetInvestmentHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DebtInstrumentExtensionTerm_019fa585-88b4-7eeb-bd25-361a5be9c598_terseLabel_en-US" xlink:label="lab_bbu_DebtInstrumentExtensionTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Extension term</link:label>
    <link:label id="lab_bbu_DebtInstrumentExtensionTerm_label_en-US" xlink:label="lab_bbu_DebtInstrumentExtensionTerm" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Extension Term</link:label>
    <link:label id="lab_bbu_DebtInstrumentExtensionTerm_documentation_en-US" xlink:label="lab_bbu_DebtInstrumentExtensionTerm" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Extension Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DebtInstrumentExtensionTerm" xlink:href="bbu-20260630.xsd#bbu_DebtInstrumentExtensionTerm"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DebtInstrumentExtensionTerm" xlink:to="lab_bbu_DebtInstrumentExtensionTerm" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ConstructionProgressExcludingProgressBillings_019e4af5-e2ec-7686-a38c-76478b442277_totalLabel_en-US" xlink:label="lab_bbu_ConstructionProgressExcludingProgressBillings" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Contract work in progress (liability)</link:label>
    <link:label id="lab_bbu_ConstructionProgressExcludingProgressBillings_label_en-US" xlink:label="lab_bbu_ConstructionProgressExcludingProgressBillings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction Progress, Excluding Progress Billings</link:label>
    <link:label id="lab_bbu_ConstructionProgressExcludingProgressBillings_documentation_en-US" xlink:label="lab_bbu_ConstructionProgressExcludingProgressBillings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Construction In Progress, Excluding Progress Billings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ConstructionProgressExcludingProgressBillings" xlink:href="bbu-20260630.xsd#bbu_ConstructionProgressExcludingProgressBillings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ConstructionProgressExcludingProgressBillings" xlink:to="lab_bbu_ConstructionProgressExcludingProgressBillings" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DirectCosts_019e4af5-e246-72ff-acb2-23129da387eb_negatedTerseLabel_en-US" xlink:label="lab_bbu_DirectCosts" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Direct operating costs</link:label>
    <link:label id="lab_bbu_DirectCosts_019e4af5-e246-7f80-8d6a-bc732d2b5c8a_totalLabel_en-US" xlink:label="lab_bbu_DirectCosts" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_bbu_DirectCosts_label_en-US" xlink:label="lab_bbu_DirectCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Direct Costs</link:label>
    <link:label id="lab_bbu_DirectCosts_documentation_en-US" xlink:label="lab_bbu_DirectCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Direct Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DirectCosts" xlink:href="bbu-20260630.xsd#bbu_DirectCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DirectCosts" xlink:to="lab_bbu_DirectCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentLeaseLiabilities_019e4af5-e2ec-7cff-9e54-ea71b2ae4359_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentLeaseLiabilities" xlink:to="lab_ifrs-full_CurrentLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit_019e4af5-e246-7153-90e5-89e569885bff_terseLabel_en-US" xlink:label="lab_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cumulative benefit</link:label>
    <link:label id="lab_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit_label_en-US" xlink:label="lab_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Cuts And Jobs Act, Incomplete Accounting, Change In Tax Rate, Provisional Income Tax Expense (Benefit)</link:label>
    <link:label id="lab_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit_documentation_en-US" xlink:label="lab_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Cuts And Jobs Act, Incomplete Accounting, Change In Tax Rate, Provisional Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit" xlink:href="bbu-20260630.xsd#bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit" xlink:to="lab_bbu_TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateProvisionalIncomeTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_019e4af5-e2ec-7f8b-b09b-ea9e5af7cc24_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EQUITY ACCOUNTED INVESTMENTS</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of investments accounted for using equity method [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InsuranceContractsByComponentsAxis_019e4af5-e246-7e81-bf84-cc420ede60fb_terseLabel_en-US" xlink:label="lab_ifrs-full_InsuranceContractsByComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance contracts by components [axis]</link:label>
    <link:label id="lab_ifrs-full_InsuranceContractsByComponentsAxis_label_en-US" xlink:label="lab_ifrs-full_InsuranceContractsByComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance contracts by components [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InsuranceContractsByComponentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InsuranceContractsByComponentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InsuranceContractsByComponentsAxis" xlink:to="lab_ifrs-full_InsuranceContractsByComponentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CorporateAndGovernmentBondsMember_019e4af5-e246-7ec3-b7d1-f174a16a8ff9_terseLabel_en-US" xlink:label="lab_bbu_CorporateAndGovernmentBondsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate and government bonds</link:label>
    <link:label id="lab_bbu_CorporateAndGovernmentBondsMember_label_en-US" xlink:label="lab_bbu_CorporateAndGovernmentBondsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate And Government Bonds [Member]</link:label>
    <link:label id="lab_bbu_CorporateAndGovernmentBondsMember_documentation_en-US" xlink:label="lab_bbu_CorporateAndGovernmentBondsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Corporate And Government Bonds [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CorporateAndGovernmentBondsMember" xlink:href="bbu-20260630.xsd#bbu_CorporateAndGovernmentBondsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CorporateAndGovernmentBondsMember" xlink:to="lab_bbu_CorporateAndGovernmentBondsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromNoncurrentBorrowings_019e4af5-e2ec-7ec1-8c5b-501abaaceb67_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from corporate borrowings</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromNoncurrentBorrowings_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from non-current borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromNoncurrentBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:to="lab_ifrs-full_ProceedsFromNoncurrentBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShare_019e4af5-e2ec-7c8a-9f5a-1eedc4c16b51_terseLabel_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted earnings (loss) per limited partner unit (in dollars per share)</link:label>
    <link:label id="lab_ifrs-full_DilutedEarningsLossPerShare_label_en-US" xlink:label="lab_ifrs-full_DilutedEarningsLossPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted earnings (loss) per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DilutedEarningsLossPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DilutedEarningsLossPerShare" xlink:to="lab_ifrs-full_DilutedEarningsLossPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RightofuseAssets_019e4af5-e2ed-7035-acc9-05d950e09e05_terseLabel_en-US" xlink:label="lab_ifrs-full_RightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_RightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_RightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RightofuseAssets" xlink:to="lab_ifrs-full_RightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019e4af5-e245-7c80-97bc-656f3fb8f31c_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_ConstructionInProgressAbstract_019e4af5-e246-7790-9ab3-126f37a80a3b_terseLabel_en-US" xlink:label="lab_bbu_ConstructionInProgressAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprising:</link:label>
    <link:label id="lab_bbu_ConstructionInProgressAbstract_label_en-US" xlink:label="lab_bbu_ConstructionInProgressAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction In Progress [Abstract]</link:label>
    <link:label id="lab_bbu_ConstructionInProgressAbstract_documentation_en-US" xlink:label="lab_bbu_ConstructionInProgressAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Construction In Progress [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_ConstructionInProgressAbstract" xlink:href="bbu-20260630.xsd#bbu_ConstructionInProgressAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_ConstructionInProgressAbstract" xlink:to="lab_bbu_ConstructionInProgressAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired_019e4af5-e245-71b2-bef6-5e224b4d4831_terseLabel_en-US" xlink:label="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of voting equity interests acquired</link:label>
    <link:label id="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired_label_en-US" xlink:label="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of voting equity interests acquired</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:to="lab_ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BBUsNCIBMember_019f1e30-975d-76cc-89fb-84be2badd428_terseLabel_en-US" xlink:label="lab_bbu_BBUsNCIBMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BBU&#8217;s NCIB</link:label>
    <link:label id="lab_bbu_BBUsNCIBMember_label_en-US" xlink:label="lab_bbu_BBUsNCIBMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BBU&#8217;s NCIB [Member]</link:label>
    <link:label id="lab_bbu_BBUsNCIBMember_documentation_en-US" xlink:label="lab_bbu_BBUsNCIBMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BBU&#8217;s NCIB</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BBUsNCIBMember" xlink:href="bbu-20260630.xsd#bbu_BBUsNCIBMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BBUsNCIBMember" xlink:to="lab_bbu_BBUsNCIBMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock_019e4af5-e2ed-7a7b-9d0e-17b3871e7a23_terseLabel_en-US" xlink:label="lab_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of changes in non-cash working capital</link:label>
    <link:label id="lab_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock_label_en-US" xlink:label="lab_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Changes In Non-cash Working Capital [Table Text Block]</link:label>
    <link:label id="lab_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock_documentation_en-US" xlink:label="lab_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Changes In Non-cash Working Capital [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock" xlink:href="bbu-20260630.xsd#bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock" xlink:to="lab_bbu_DisclosureOfChangesInNoncashWorkingCapitalTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents_019e4af5-e246-7085-b65b-ba65325585f1_terseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net deposit</link:label>
    <link:label id="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term deposits, classified as cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:to="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_IntangibleAssetsAbstract_019e4af5-e2ec-7a44-b258-90aef62bcc97_terseLabel_en-US" xlink:label="lab_bbu_IntangibleAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangible Assets [Abstract]</link:label>
    <link:label id="lab_bbu_IntangibleAssetsAbstract_label_en-US" xlink:label="lab_bbu_IntangibleAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible Assets [Abstract]</link:label>
    <link:label id="lab_bbu_IntangibleAssetsAbstract_documentation_en-US" xlink:label="lab_bbu_IntangibleAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Intangible Assets [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_IntangibleAssetsAbstract" xlink:href="bbu-20260630.xsd#bbu_IntangibleAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_IntangibleAssetsAbstract" xlink:to="lab_bbu_IntangibleAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_DisposalOfNoncurrentAssetsAbstract_019e4af5-e246-78d4-83c1-1d3f5b6ab4f1_terseLabel_en-US" xlink:label="lab_bbu_DisposalOfNoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disposals Of Non-current Assets [Abstract]</link:label>
    <link:label id="lab_bbu_DisposalOfNoncurrentAssetsAbstract_label_en-US" xlink:label="lab_bbu_DisposalOfNoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Of Noncurrent Assets [Abstract]</link:label>
    <link:label id="lab_bbu_DisposalOfNoncurrentAssetsAbstract_documentation_en-US" xlink:label="lab_bbu_DisposalOfNoncurrentAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposal Of Noncurrent Assets [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_DisposalOfNoncurrentAssetsAbstract" xlink:href="bbu-20260630.xsd#bbu_DisposalOfNoncurrentAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_DisposalOfNoncurrentAssetsAbstract" xlink:to="lab_bbu_DisposalOfNoncurrentAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_BrookfieldCorporationMember_019f1c7e-918d-78f3-8b56-eda81508c527_terseLabel_en-US" xlink:label="lab_bbu_BrookfieldCorporationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brookfield corporation</link:label>
    <link:label id="lab_bbu_BrookfieldCorporationMember_label_en-US" xlink:label="lab_bbu_BrookfieldCorporationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Brookfield Corporation [Member]</link:label>
    <link:label id="lab_bbu_BrookfieldCorporationMember_documentation_en-US" xlink:label="lab_bbu_BrookfieldCorporationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Brookfield Corporation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_BrookfieldCorporationMember" xlink:href="bbu-20260630.xsd#bbu_BrookfieldCorporationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_BrookfieldCorporationMember" xlink:to="lab_bbu_BrookfieldCorporationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax_019e4af5-e2ec-7073-9cfb-6258a3c9d8d3_terseLabel_en-US" xlink:label="lab_ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Receivables from taxes other than income tax</link:label>
    <link:label id="lab_ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax_label_en-US" xlink:label="lab_ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivables from taxes other than income tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax" xlink:to="lab_ifrs-full_ReceivablesFromTaxesOtherThanIncomeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_bbu_CommodityContract1Member_019e4af5-e2ec-7afb-8d55-e74c0b60135d_terseLabel_en-US" xlink:label="lab_bbu_CommodityContract1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commodities contracts</link:label>
    <link:label id="lab_bbu_CommodityContract1Member_label_en-US" xlink:label="lab_bbu_CommodityContract1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commodity Contract 1 [Member]</link:label>
    <link:label id="lab_bbu_CommodityContract1Member_documentation_en-US" xlink:label="lab_bbu_CommodityContract1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commodity Contract 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbu_CommodityContract1Member" xlink:href="bbu-20260630.xsd#bbu_CommodityContract1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbu_CommodityContract1Member" xlink:to="lab_bbu_CommodityContract1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsForInsuranceAcquisitionCashFlows_019e4af5-e2ed-7446-9c73-caad12ef688a_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_AssetsForInsuranceAcquisitionCashFlows" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Insurance acquisition cash flows</link:label>
    <link:label id="lab_ifrs-full_AssetsForInsuranceAcquisitionCashFlows_label_en-US" xlink:label="lab_ifrs-full_AssetsForInsuranceAcquisitionCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets for insurance acquisition cash flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsForInsuranceAcquisitionCashFlows" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsForInsuranceAcquisitionCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsForInsuranceAcquisitionCashFlows" xlink:to="lab_ifrs-full_AssetsForInsuranceAcquisitionCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_019e4af5-e2ec-7d01-b75e-7f493e97f71b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughRecognitionOfContractualServiceMarginInProfitOrLossToReflectTransferOfServicesInsuranceContractsLiabilityAsset_019e4af5-e246-7f35-a764-2ec70a1893fa_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughRecognitionOfContractualServiceMarginInProfitOrLossToReflectTransferOfServicesInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contractual service margin recognized for services provided</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughRecognitionOfContractualServiceMarginInProfitOrLossToReflectTransferOfServicesInsuranceContractsLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughRecognitionOfContractualServiceMarginInProfitOrLossToReflectTransferOfServicesInsuranceContractsLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through recognition of contractual service margin in profit or loss to reflect transfer of services, insurance contracts liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughRecognitionOfContractualServiceMarginInProfitOrLossToReflectTransferOfServicesInsuranceContractsLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughRecognitionOfContractualServiceMarginInProfitOrLossToReflectTransferOfServicesInsuranceContractsLiabilityAsset"/>
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