<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019fdc74-3eea-7a0b-8e4c-30440ba7ef26,g:7e939b50-083a-47aa-b58b-b221ddd57e62-->
<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" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.coors.com/role/CoverPage" xlink:type="simple" xlink:href="tap-20260930.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_019fdc74-405f-78ba-97d3-f34f3f105431" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntitiesTable_019fdc74-405f-78ba-97d3-f34f3f105431" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019fdc74-405f-73e9-81ca-4b743e54cec1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_019fdc74-405f-78ba-97d3-f34f3f105431" xlink:to="loc_srt_StatementGeographicalAxis_019fdc74-405f-73e9-81ca-4b743e54cec1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019fdc74-405f-73e9-81ca-4b743e54cec1_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019fdc74-405f-73e9-81ca-4b743e54cec1" xlink:to="loc_srt_SegmentGeographicalDomain_019fdc74-405f-73e9-81ca-4b743e54cec1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019fdc74-405f-7726-8f33-b9a23ad0ebda" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019fdc74-405f-73e9-81ca-4b743e54cec1" xlink:to="loc_srt_SegmentGeographicalDomain_019fdc74-405f-7726-8f33-b9a23ad0ebda" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CA_019fdc74-405f-7df6-bf84-9b177701e785" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_CA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019fdc74-405f-7726-8f33-b9a23ad0ebda" xlink:to="loc_country_CA_019fdc74-405f-7df6-bf84-9b177701e785" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019fdc74-405f-7df4-b344-e6faf32ee52c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_019fdc74-405f-78ba-97d3-f34f3f105431" xlink:to="loc_us-gaap_DebtInstrumentAxis_019fdc74-405f-7df4-b344-e6faf32ee52c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-405f-7df4-b344-e6faf32ee52c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fdc74-405f-7df4-b344-e6faf32ee52c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-405f-7df4-b344-e6faf32ee52c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-405f-7287-babe-d49d2ea770fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fdc74-405f-7df4-b344-e6faf32ee52c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-405f-7287-babe-d49d2ea770fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_SeniorNotesDue2032Member_019fdc74-405f-7ab1-94ef-2b4d4dd6a36d" xlink:href="tap-20260930.xsd#tap_SeniorNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-405f-7287-babe-d49d2ea770fe" xlink:to="loc_tap_SeniorNotesDue2032Member_019fdc74-405f-7ab1-94ef-2b4d4dd6a36d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsExchangeAxis_019fdc74-405f-70d8-981f-19812a19a85b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityListingsExchangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_019fdc74-405f-78ba-97d3-f34f3f105431" xlink:to="loc_dei_EntityListingsExchangeAxis_019fdc74-405f-70d8-981f-19812a19a85b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_ExchangeDomain_019fdc74-405f-70d8-981f-19812a19a85b_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_ExchangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_EntityListingsExchangeAxis_019fdc74-405f-70d8-981f-19812a19a85b" xlink:to="loc_dei_ExchangeDomain_019fdc74-405f-70d8-981f-19812a19a85b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_ExchangeDomain_019fdc74-405f-714e-ab62-7196d8e7cae4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_ExchangeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_EntityListingsExchangeAxis_019fdc74-405f-70d8-981f-19812a19a85b" xlink:to="loc_dei_ExchangeDomain_019fdc74-405f-714e-ab62-7196d8e7cae4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exch_XNYS_019fdc74-405f-7bf2-819c-32facf78a06a" xlink:href="https://xbrl.sec.gov/exch/2026/exch-2026.xsd#exch_XNYS"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_ExchangeDomain_019fdc74-405f-714e-ab62-7196d8e7cae4" xlink:to="loc_exch_XNYS_019fdc74-405f-7bf2-819c-32facf78a06a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7fe4-9681-d757bfabbc15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_019fdc74-405f-78ba-97d3-f34f3f105431" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7fe4-9681-d757bfabbc15" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7fe4-9681-d757bfabbc15_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7fe4-9681-d757bfabbc15" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7fe4-9681-d757bfabbc15_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7516-a9bb-10f5cf90919b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7fe4-9681-d757bfabbc15" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7516-a9bb-10f5cf90919b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019fdc74-405f-7400-91a1-b746a8f063a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7516-a9bb-10f5cf90919b" xlink:to="loc_us-gaap_CommonClassAMember_019fdc74-405f-7400-91a1-b746a8f063a9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019fdc74-405f-769b-a6e5-a8cf42bd09b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7516-a9bb-10f5cf90919b" xlink:to="loc_us-gaap_CommonClassBMember_019fdc74-405f-769b-a6e5-a8cf42bd09b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019fdc74-405f-7dbf-9d17-7087f83fd7bc" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_DocumentType_019fdc74-405f-7dbf-9d17-7087f83fd7bc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_019fdc74-405f-7d4e-9e53-fc8688e677cf" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_DocumentQuarterlyReport_019fdc74-405f-7d4e-9e53-fc8688e677cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019fdc74-405f-7d37-ac16-6ba00586b838" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_DocumentPeriodEndDate_019fdc74-405f-7d37-ac16-6ba00586b838" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_019fdc74-405f-7caf-9b16-7450e1477581" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_DocumentTransitionReport_019fdc74-405f-7caf-9b16-7450e1477581" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019fdc74-405f-7409-8994-834fb0250c7b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityFileNumber_019fdc74-405f-7409-8994-834fb0250c7b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019fdc74-405f-733b-ba62-433de717ed2c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityRegistrantName_019fdc74-405f-733b-ba62-433de717ed2c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019fdc74-405f-7456-a46d-a58199ff1191" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019fdc74-405f-7456-a46d-a58199ff1191" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019fdc74-405f-7535-a802-9d766a25d43f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityTaxIdentificationNumber_019fdc74-405f-7535-a802-9d766a25d43f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019fdc74-405f-732e-8508-8347669454d0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityAddressAddressLine1_019fdc74-405f-732e-8508-8347669454d0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019fdc74-405f-72fa-afef-b145aacc6c87" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityAddressCityOrTown_019fdc74-405f-72fa-afef-b145aacc6c87" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019fdc74-405f-769b-84dc-d158aeacb001" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityAddressStateOrProvince_019fdc74-405f-769b-84dc-d158aeacb001" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCountry_019fdc74-405f-7320-a942-0f46808eb8fd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCountry"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityAddressCountry_019fdc74-405f-7320-a942-0f46808eb8fd" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019fdc74-405f-7217-8791-ff7b8623e205" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityAddressAddressLine2_019fdc74-405f-7217-8791-ff7b8623e205" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019fdc74-405f-78d1-8bf3-ac00817d92fe" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityAddressPostalZipCode_019fdc74-405f-78d1-8bf3-ac00817d92fe" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019fdc74-405f-7b23-889c-4658b82253a5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_CityAreaCode_019fdc74-405f-7b23-889c-4658b82253a5" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019fdc74-405f-7acf-ab87-f1d8d565af1f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_LocalPhoneNumber_019fdc74-405f-7acf-ab87-f1d8d565af1f" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019fdc74-405f-70d3-83ce-213a22424c6f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_Security12bTitle_019fdc74-405f-70d3-83ce-213a22424c6f" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019fdc74-405f-779c-b6e0-539006793c94" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_TradingSymbol_019fdc74-405f-779c-b6e0-539006793c94" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019fdc74-405f-7e3c-a806-230609fd18ad" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_SecurityExchangeName_019fdc74-405f-7e3c-a806-230609fd18ad" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_019fdc74-405f-7eb2-a05f-e5e493e09d0e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityCurrentReportingStatus_019fdc74-405f-7eb2-a05f-e5e493e09d0e" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_019fdc74-405f-7525-939e-defb001a7bb1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityInteractiveDataCurrent_019fdc74-405f-7525-939e-defb001a7bb1" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_019fdc74-405f-70f8-ac41-2807baca3e91" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityFilerCategory_019fdc74-405f-70f8-ac41-2807baca3e91" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_019fdc74-405f-7f3a-aedf-970008b5833e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntitySmallBusiness_019fdc74-405f-7f3a-aedf-970008b5833e" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019fdc74-405f-7877-8d80-4122d60007f6" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityEmergingGrowthCompany_019fdc74-405f-7877-8d80-4122d60007f6" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_019fdc74-405f-70a5-9675-b8373f3836e1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityShellCompany_019fdc74-405f-70a5-9675-b8373f3836e1" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_019fdc74-405f-70f4-9851-43e5ade685ad" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_019fdc74-405f-70f4-9851-43e5ade685ad" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019fdc74-405f-7eed-a1dc-989d82d838ce" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_EntityCentralIndexKey_019fdc74-405f-7eed-a1dc-989d82d838ce" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_019fdc74-405f-7040-bb54-c8f03136d22f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_DocumentFiscalYearFocus_019fdc74-405f-7040-bb54-c8f03136d22f" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_019fdc74-405f-72b5-be3c-1052d4c9751d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_DocumentFiscalPeriodFocus_019fdc74-405f-72b5-be3c-1052d4c9751d" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019fdc74-405f-7077-bfa7-6955bb204e2c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_CurrentFiscalYearEndDate_019fdc74-405f-7077-bfa7-6955bb204e2c" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019fdc74-405f-7714-a095-3f991f8a336b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019fdc74-405f-7326-b62a-7b0dda11de81" xlink:to="loc_dei_AmendmentFlag_019fdc74-405f-7714-a095-3f991f8a336b" xlink:type="arc" order="30"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="tap-20260930.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019fdc74-405f-788d-ad47-a54878b1c47b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019fdc74-405f-73ba-8343-11c75198fedd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-788d-ad47-a54878b1c47b" xlink:to="loc_us-gaap_StatementTable_019fdc74-405f-73ba-8343-11c75198fedd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-75c9-b85c-3d1912488192" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019fdc74-405f-73ba-8343-11c75198fedd" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-75c9-b85c-3d1912488192" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-75c9-b85c-3d1912488192_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-75c9-b85c-3d1912488192" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-75c9-b85c-3d1912488192_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7e0e-95a6-c275ad56595c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-75c9-b85c-3d1912488192" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7e0e-95a6-c275ad56595c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019fdc74-405f-7a3c-bad4-848ec50b55b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7e0e-95a6-c275ad56595c" xlink:to="loc_us-gaap_CommonClassAMember_019fdc74-405f-7a3c-bad4-848ec50b55b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019fdc74-405f-7297-a18e-35560226ee52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7e0e-95a6-c275ad56595c" xlink:to="loc_us-gaap_CommonClassBMember_019fdc74-405f-7297-a18e-35560226ee52" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ClassExchangeableSharesMember_019fdc74-405f-7c95-9ca2-ab4e7e268a80" xlink:href="tap-20260930.xsd#tap_ClassExchangeableSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7e0e-95a6-c275ad56595c" xlink:to="loc_tap_ClassExchangeableSharesMember_019fdc74-405f-7c95-9ca2-ab4e7e268a80" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ClassBExchangeableSharesMember_019fdc74-405f-75cb-9349-db0727a89bb6" xlink:href="tap-20260930.xsd#tap_ClassBExchangeableSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7e0e-95a6-c275ad56595c" xlink:to="loc_tap_ClassBExchangeableSharesMember_019fdc74-405f-75cb-9349-db0727a89bb6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-788d-ad47-a54878b1c47b" xlink:to="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:to="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019fdc74-405f-7827-92a1-7a22a5813d61" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019fdc74-405f-7827-92a1-7a22a5813d61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019fdc74-405f-71c5-b686-fffe1b42a51e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019fdc74-405f-71c5-b686-fffe1b42a51e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_019fdc74-405f-7e6f-916b-5365f2c79e93" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherReceivablesNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_019fdc74-405f-7e6f-916b-5365f2c79e93" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019fdc74-405f-7167-be1c-38708d288a0b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:to="loc_us-gaap_InventoryNet_019fdc74-405f-7167-be1c-38708d288a0b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019fdc74-405f-7176-a117-dcf4845c4b18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:to="loc_us-gaap_OtherAssetsCurrent_019fdc74-405f-7176-a117-dcf4845c4b18" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019fdc74-405f-7765-ab76-de959b06419c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019fdc74-405f-7870-bde4-9fd9d4a2efd4" xlink:to="loc_us-gaap_AssetsCurrent_019fdc74-405f-7765-ab76-de959b06419c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019fdc74-405f-7d1e-a896-031928aee000" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019fdc74-405f-7d1e-a896-031928aee000" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019fdc74-405f-7379-b371-dcd6da99c647" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:to="loc_us-gaap_Goodwill_019fdc74-405f-7379-b371-dcd6da99c647" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019fdc74-405f-7d6a-b2f4-8e3df2014943" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019fdc74-405f-7d6a-b2f4-8e3df2014943" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019fdc74-405f-7393-9356-2089cec84321" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019fdc74-405f-7393-9356-2089cec84321" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019fdc74-405f-784c-b0b1-89e238a9f5b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019fdc74-405f-7fb9-8345-f7ca9c170098" xlink:to="loc_us-gaap_Assets_019fdc74-405f-784c-b0b1-89e238a9f5b3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-788d-ad47-a54878b1c47b" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_019fdc74-405f-7fd3-9a8e-852d5b87bc2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_019fdc74-405f-7fd3-9a8e-852d5b87bc2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent_019fdc74-405f-78d3-91e8-d89a9706cb32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019fdc74-405f-7fd3-9a8e-852d5b87bc2f" xlink:to="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent_019fdc74-405f-78d3-91e8-d89a9706cb32" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_019fdc74-405f-7bf3-b15c-949231a39599" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019fdc74-405f-7fd3-9a8e-852d5b87bc2f" xlink:to="loc_us-gaap_DebtCurrent_019fdc74-405f-7bf3-b15c-949231a39599" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019fdc74-405f-7c3e-860f-b8159963765f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019fdc74-405f-7fd3-9a8e-852d5b87bc2f" xlink:to="loc_us-gaap_LiabilitiesCurrent_019fdc74-405f-7c3e-860f-b8159963765f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019fdc74-405f-7278-817c-c717a1286c05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019fdc74-405f-7278-817c-c717a1286c05" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_019fdc74-405f-7333-af20-543f19c71e75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_019fdc74-405f-7333-af20-543f19c71e75" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019fdc74-405f-73a2-902b-caba7029243a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_019fdc74-405f-73a2-902b-caba7029243a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019fdc74-405f-7859-9a3c-cdee97eec685" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019fdc74-405f-7859-9a3c-cdee97eec685" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019fdc74-405f-7e44-b6bd-e8a72aa901d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_Liabilities_019fdc74-405f-7e44-b6bd-e8a72aa901d4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019fdc74-405f-75b2-8134-3bb07db91469" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019fdc74-405f-75b2-8134-3bb07db91469" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_019fdc74-405f-70e5-9de5-eab5891d0a96" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_019fdc74-405f-70e5-9de5-eab5891d0a96" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_CapitalStockAbstract_019fdc74-405f-756d-892f-cb03fe103a63" xlink:href="tap-20260930.xsd#tap_CapitalStockAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:to="loc_tap_CapitalStockAbstract_019fdc74-405f-756d-892f-cb03fe103a63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019fdc74-405f-788f-be82-c79cc644babf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_CapitalStockAbstract_019fdc74-405f-756d-892f-cb03fe103a63" xlink:to="loc_us-gaap_PreferredStockValue_019fdc74-405f-788f-be82-c79cc644babf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019fdc74-405f-72fd-8d5b-08a4dd69f345" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_CapitalStockAbstract_019fdc74-405f-756d-892f-cb03fe103a63" xlink:to="loc_us-gaap_CommonStockValue_019fdc74-405f-72fd-8d5b-08a4dd69f345" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ExchangeableStockValue_019fdc74-405f-7e76-822c-9a54a300b100" xlink:href="tap-20260930.xsd#tap_ExchangeableStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_CapitalStockAbstract_019fdc74-405f-756d-892f-cb03fe103a63" xlink:to="loc_tap_ExchangeableStockValue_019fdc74-405f-7e76-822c-9a54a300b100" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019fdc74-405f-7505-a1e3-b014ff870ab6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019fdc74-405f-7505-a1e3-b014ff870ab6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019fdc74-405f-7bf0-b709-2c246e5a869d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019fdc74-405f-7bf0-b709-2c246e5a869d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019fdc74-405f-72f6-9cbe-5f39019c34d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019fdc74-405f-72f6-9cbe-5f39019c34d6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_019fdc74-405f-7c89-a346-83cc0c0358a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:to="loc_us-gaap_TreasuryStockCommonValue_019fdc74-405f-7c89-a346-83cc0c0358a9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019fdc74-405f-7ce9-99f7-4c5491ca3ee5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_019fdc74-405f-7cc2-8679-fb3288036e3b" xlink:to="loc_us-gaap_StockholdersEquity_019fdc74-405f-7ce9-99f7-4c5491ca3ee5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019fdc74-405f-76fc-836a-5a9b2fc66ea5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_MinorityInterest_019fdc74-405f-76fc-836a-5a9b2fc66ea5" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-405f-718f-b4f9-04f9860f4606" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-405f-718f-b4f9-04f9860f4606" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019fdc74-405f-7022-8762-6cc5a8a48ca1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019fdc74-405f-7bce-aa8f-78a029453303" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_019fdc74-405f-7022-8762-6cc5a8a48ca1" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSPARENTHETICAL" xlink:type="simple" xlink:href="tap-20260930.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSPARENTHETICAL"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSPARENTHETICAL" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019fdc74-405f-7cd7-bd7a-b900c5e1ed1e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_StatementTable_019fdc74-405f-7cd7-bd7a-b900c5e1ed1e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-79f2-ac29-580dda3158a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019fdc74-405f-7cd7-bd7a-b900c5e1ed1e" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-79f2-ac29-580dda3158a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-79f2-ac29-580dda3158a6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-79f2-ac29-580dda3158a6" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-79f2-ac29-580dda3158a6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7be9-9a05-7a4fb57e62f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-79f2-ac29-580dda3158a6" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7be9-9a05-7a4fb57e62f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019fdc74-405f-7e55-bd2a-705fa15b83dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7be9-9a05-7a4fb57e62f5" xlink:to="loc_us-gaap_CommonClassAMember_019fdc74-405f-7e55-bd2a-705fa15b83dd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019fdc74-405f-7f18-9807-fa8d02d2bdbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7be9-9a05-7a4fb57e62f5" xlink:to="loc_us-gaap_CommonClassBMember_019fdc74-405f-7f18-9807-fa8d02d2bdbd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ClassExchangeableSharesMember_019fdc74-405f-7f5a-9e6f-21e0a3885a4c" xlink:href="tap-20260930.xsd#tap_ClassExchangeableSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7be9-9a05-7a4fb57e62f5" xlink:to="loc_tap_ClassExchangeableSharesMember_019fdc74-405f-7f5a-9e6f-21e0a3885a4c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ClassBExchangeableSharesMember_019fdc74-405f-74c9-b1e3-8199d5f1a94c" xlink:href="tap-20260930.xsd#tap_ClassBExchangeableSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7be9-9a05-7a4fb57e62f5" xlink:to="loc_tap_ClassBExchangeableSharesMember_019fdc74-405f-74c9-b1e3-8199d5f1a94c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019fdc74-405f-7855-876a-3156307cb012" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019fdc74-405f-7855-876a-3156307cb012" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019fdc74-405f-76bb-b537-d097ac732ed3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019fdc74-405f-76bb-b537-d097ac732ed3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_019fdc74-405f-7759-bda5-66b110d7d4d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_PreferredStockSharesIssued_019fdc74-405f-7759-bda5-66b110d7d4d9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fdc74-405f-7102-ba17-9268aab00870" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fdc74-405f-7102-ba17-9268aab00870" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019fdc74-405f-794d-b35e-70358622a5c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019fdc74-405f-794d-b35e-70358622a5c2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019fdc74-405f-7d83-904a-c41489b39a2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_CommonStockSharesIssued_019fdc74-405f-7d83-904a-c41489b39a2a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019fdc74-405f-7a6d-8310-eeffe135c557" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019fdc74-405f-7a6d-8310-eeffe135c557" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ExchangeableStockSharesIssued_019fdc74-405f-7e08-b21e-2cdfd76f7073" xlink:href="tap-20260930.xsd#tap_ExchangeableStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_tap_ExchangeableStockSharesIssued_019fdc74-405f-7e08-b21e-2cdfd76f7073" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ExchangeableStockSharesOutstanding_019fdc74-405f-7f88-94ec-d5a5858a5470" xlink:href="tap-20260930.xsd#tap_ExchangeableStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_tap_ExchangeableStockSharesOutstanding_019fdc74-405f-7f88-94ec-d5a5858a5470" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019fdc74-405f-73fe-9475-bc687f994ab0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7a60-b4b7-33e25f5cdd8a" xlink:to="loc_us-gaap_TreasuryStockCommonShares_019fdc74-405f-73fe-9475-bc687f994ab0" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYANDNONCONTROLLINGINTERESTS" xlink:type="simple" xlink:href="tap-20260930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYANDNONCONTROLLINGINTERESTS"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYANDNONCONTROLLINGINTERESTS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019fdc74-405f-7624-b734-ed8ba12f5f43" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019fdc74-405f-7e4f-bf33-510b4297f72a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7624-b734-ed8ba12f5f43" xlink:to="loc_us-gaap_StatementTable_019fdc74-405f-7e4f-bf33-510b4297f72a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-405f-7028-b749-8e0ba3d52ed0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019fdc74-405f-7e4f-bf33-510b4297f72a" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-405f-7028-b749-8e0ba3d52ed0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019fdc74-405f-7028-b749-8e0ba3d52ed0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-405f-7028-b749-8e0ba3d52ed0" xlink:to="loc_us-gaap_EquityComponentDomain_019fdc74-405f-7028-b749-8e0ba3d52ed0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-405f-7028-b749-8e0ba3d52ed0" xlink:to="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019fdc74-405f-7555-a2e0-03de808269cd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:to="loc_us-gaap_CommonStockMember_019fdc74-405f-7555-a2e0-03de808269cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019fdc74-405f-794c-83f9-0fa1b4c19263" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019fdc74-405f-794c-83f9-0fa1b4c19263" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019fdc74-405f-76dc-bc4b-c91dda7e71e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:to="loc_us-gaap_RetainedEarningsMember_019fdc74-405f-76dc-bc4b-c91dda7e71e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019fdc74-405f-7524-9f87-385e6326f989" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019fdc74-405f-7524-9f87-385e6326f989" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_019fdc74-405f-78f6-b9de-c56fc8ac776a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:to="loc_us-gaap_TreasuryStockCommonMember_019fdc74-405f-78f6-b9de-c56fc8ac776a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019fdc74-405f-7c77-be49-3c062ee75a3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-405f-75ec-a2c2-e47c31619607" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019fdc74-405f-7c77-be49-3c062ee75a3c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-708d-a3a8-73ad1bb5ed38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019fdc74-405f-7e4f-bf33-510b4297f72a" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-708d-a3a8-73ad1bb5ed38" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-708d-a3a8-73ad1bb5ed38_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-708d-a3a8-73ad1bb5ed38" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-708d-a3a8-73ad1bb5ed38_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7c6c-93c1-6ddfe0bfaec9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-708d-a3a8-73ad1bb5ed38" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7c6c-93c1-6ddfe0bfaec9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019fdc74-405f-7323-8896-89c690297294" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7c6c-93c1-6ddfe0bfaec9" xlink:to="loc_us-gaap_CommonClassAMember_019fdc74-405f-7323-8896-89c690297294" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019fdc74-405f-747a-b6e4-6cf3d1baedee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7c6c-93c1-6ddfe0bfaec9" xlink:to="loc_us-gaap_CommonClassBMember_019fdc74-405f-747a-b6e4-6cf3d1baedee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ClassExchangeableSharesMember_019fdc74-405f-75bd-847a-7ac9651ad7ae" xlink:href="tap-20260930.xsd#tap_ClassExchangeableSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7c6c-93c1-6ddfe0bfaec9" xlink:to="loc_tap_ClassExchangeableSharesMember_019fdc74-405f-75bd-847a-7ac9651ad7ae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ClassBExchangeableSharesMember_019fdc74-405f-7cb3-b1f1-9827d60efa64" xlink:href="tap-20260930.xsd#tap_ClassBExchangeableSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7c6c-93c1-6ddfe0bfaec9" xlink:to="loc_tap_ClassBExchangeableSharesMember_019fdc74-405f-7cb3-b1f1-9827d60efa64" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019fdc74-405f-7624-b734-ed8ba12f5f43" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-405f-79bd-b046-3c1957cd4527" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-405f-79bd-b046-3c1957cd4527" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_019fdc74-405f-7ae9-b742-ed6037e338aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_019fdc74-405f-7ae9-b742-ed6037e338aa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019fdc74-405f-714f-b19e-fc630f02146e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019fdc74-405f-714f-b19e-fc630f02146e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019fdc74-405f-7871-8e92-523fb94c3c98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019fdc74-405f-7871-8e92-523fb94c3c98" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestDecreaseFromRedemptions_019fdc74-405f-71a2-8778-3aab8178915a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestDecreaseFromRedemptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_MinorityInterestDecreaseFromRedemptions_019fdc74-405f-71a2-8778-3aab8178915a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest_019fdc74-405f-72cb-9013-a942c0c0b548" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest_019fdc74-405f-72cb-9013-a942c0c0b548" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_OtherComprehensiveIncomeLossNetOfTaxIncludingRedeemableNonControllingInterest_019fdc74-405f-7d6d-8c40-2998e5667df9" xlink:href="tap-20260930.xsd#tap_OtherComprehensiveIncomeLossNetOfTaxIncludingRedeemableNonControllingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_tap_OtherComprehensiveIncomeLossNetOfTaxIncludingRedeemableNonControllingInterest_019fdc74-405f-7d6d-8c40-2998e5667df9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019fdc74-405f-75a1-9a3e-65eb92f5d4fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019fdc74-405f-75a1-9a3e-65eb92f5d4fe" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AdjustmentsToAdditionalPaidInCapitalRedemptionValueAdjustment_019fdc74-405f-75c4-ab84-cb8f67ece139" xlink:href="tap-20260930.xsd#tap_AdjustmentsToAdditionalPaidInCapitalRedemptionValueAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_tap_AdjustmentsToAdditionalPaidInCapitalRedemptionValueAdjustment_019fdc74-405f-75c4-ab84-cb8f67ece139" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_019fdc74-405f-78dd-848d-948fe79ad71a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_019fdc74-405f-78dd-848d-948fe79ad71a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_019fdc74-405f-7c55-9fdd-0234c4edb2da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019fdc74-405f-72b6-ac22-e79ce05c91ee" xlink:to="loc_us-gaap_DividendsCommonStockCash_019fdc74-405f-7c55-9fdd-0234c4edb2da" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-405f-7f84-953d-0240f96480b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesDividendsDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#BasisofPresentationandSummaryofSignificantAccountingPoliciesDividendsDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesDividendsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_019fdc74-405f-709f-b75a-d4334f47d80d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_019fdc74-405f-744a-a010-ff5b4edb266d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_019fdc74-405f-709f-b75a-d4334f47d80d" xlink:to="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_019fdc74-405f-744a-a010-ff5b4edb266d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7f51-a2c1-299edd5cbb51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_019fdc74-405f-744a-a010-ff5b4edb266d" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7f51-a2c1-299edd5cbb51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7f51-a2c1-299edd5cbb51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7f51-a2c1-299edd5cbb51" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-7f51-a2c1-299edd5cbb51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-789c-b8e0-f63f063e77c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019fdc74-405f-7f51-a2c1-299edd5cbb51" xlink:to="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-789c-b8e0-f63f063e77c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ClassAAndBCommonStockMember_019fdc74-405f-7406-83f3-636a1177e609" xlink:href="tap-20260930.xsd#tap_ClassAAndBCommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019fdc74-405f-789c-b8e0-f63f063e77c7" xlink:to="loc_tap_ClassAAndBCommonStockMember_019fdc74-405f-7406-83f3-636a1177e609" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_019fdc74-405f-7a91-9cc3-9c5216c99ec6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_019fdc74-405f-709f-b75a-d4334f47d80d" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_019fdc74-405f-7a91-9cc3-9c5216c99ec6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ExchangeableSharesDividendsPerShareCashPaid_019fdc74-405f-7920-993d-30a294f4db05" xlink:href="tap-20260930.xsd#tap_ExchangeableSharesDividendsPerShareCashPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_019fdc74-405f-709f-b75a-d4334f47d80d" xlink:to="loc_tap_ExchangeableSharesDividendsPerShareCashPaid_019fdc74-405f-7920-993d-30a294f4db05" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesAtomicBrandsIncDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#BasisofPresentationandSummaryofSignificantAccountingPoliciesAtomicBrandsIncDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/BasisofPresentationandSummaryofSignificantAccountingPoliciesAtomicBrandsIncDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019fdc74-410d-74cb-a0cb-96a6f4c66f19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019fdc74-410d-7684-8510-bd12766ff9c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019fdc74-410d-74cb-a0cb-96a6f4c66f19" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019fdc74-410d-7684-8510-bd12766ff9c0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019fdc74-410d-7b81-b7b4-39736dc59375" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019fdc74-410d-7684-8510-bd12766ff9c0" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019fdc74-410d-7b81-b7b4-39736dc59375" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019fdc74-410d-7b81-b7b4-39736dc59375_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019fdc74-410d-7b81-b7b4-39736dc59375" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019fdc74-410d-7b81-b7b4-39736dc59375_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019fdc74-410d-7aec-8499-ef7277024ed6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019fdc74-410d-7b81-b7b4-39736dc59375" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019fdc74-410d-7aec-8499-ef7277024ed6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AtomicBrandsIncMember_019fdc74-410d-7625-90bd-dc35fc9b7ece" xlink:href="tap-20260930.xsd#tap_AtomicBrandsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019fdc74-410d-7aec-8499-ef7277024ed6" xlink:to="loc_tap_AtomicBrandsIncMember_019fdc74-410d-7625-90bd-dc35fc9b7ece" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019fdc74-410d-7500-a10f-ec09d6694994" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019fdc74-410d-74cb-a0cb-96a6f4c66f19" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019fdc74-410d-7500-a10f-ec09d6694994" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_019fdc74-410d-726e-bc76-518ff1f181ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019fdc74-410d-74cb-a0cb-96a6f4c66f19" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_019fdc74-410d-726e-bc76-518ff1f181ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019fdc74-410d-7124-9323-b1052f0adfdb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019fdc74-410d-74cb-a0cb-96a6f4c66f19" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019fdc74-410d-7124-9323-b1052f0adfdb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019fdc74-410d-7349-a97e-6cf75ed404eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019fdc74-410d-74cb-a0cb-96a6f4c66f19" xlink:to="loc_us-gaap_Goodwill_019fdc74-410d-7349-a97e-6cf75ed404eb" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/InvestmentsVariableInterestEntityDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#InvestmentsVariableInterestEntityDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/InvestmentsVariableInterestEntityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7c6d-87c9-d4982f27cda8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableInterestEntityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_019fdc74-410d-7ea7-a8f1-6f9e83cb8540" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7c6d-87c9-d4982f27cda8" xlink:to="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_019fdc74-410d-7ea7-a8f1-6f9e83cb8540" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7c46-b219-3ce7b1ba5f8d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_019fdc74-410d-7ea7-a8f1-6f9e83cb8540" xlink:to="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7c46-b219-3ce7b1ba5f8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-7c46-b219-3ce7b1ba5f8d_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7c46-b219-3ce7b1ba5f8d" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-7c46-b219-3ce7b1ba5f8d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-76c0-8e31-5fdd4ade99b4" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7c46-b219-3ce7b1ba5f8d" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-76c0-8e31-5fdd4ade99b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_VariableInterestEntityPrimaryBeneficiaryRMMCRMBCMember_019fdc74-410d-7e6e-86f8-8bc5be71bc95" xlink:href="tap-20260930.xsd#tap_VariableInterestEntityPrimaryBeneficiaryRMMCRMBCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-76c0-8e31-5fdd4ade99b4" xlink:to="loc_tap_VariableInterestEntityPrimaryBeneficiaryRMMCRMBCMember_019fdc74-410d-7e6e-86f8-8bc5be71bc95" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019fdc74-410d-752a-8bb7-24091fec703b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7c6d-87c9-d4982f27cda8" xlink:to="loc_us-gaap_Assets_019fdc74-410d-752a-8bb7-24091fec703b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019fdc74-410d-7e2f-b186-d6d8f04dcbdc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7c6d-87c9-d4982f27cda8" xlink:to="loc_us-gaap_Liabilities_019fdc74-410d-7e2f-b186-d6d8f04dcbdc" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/InvestmentsNarrativeDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#InvestmentsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/InvestmentsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7066-8ffe-6e2415c7ac84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableInterestEntityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_019fdc74-410d-784c-b262-5a794185d138" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7066-8ffe-6e2415c7ac84" xlink:to="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_019fdc74-410d-784c-b262-5a794185d138" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7ffc-a716-ed2473a52393" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_019fdc74-410d-784c-b262-5a794185d138" xlink:to="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7ffc-a716-ed2473a52393" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-7ffc-a716-ed2473a52393_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7ffc-a716-ed2473a52393" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-7ffc-a716-ed2473a52393_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-7b81-aa9e-4758cb31a050" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019fdc74-410d-7ffc-a716-ed2473a52393" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-7b81-aa9e-4758cb31a050" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_VariableInterestEntityPrimaryBeneficiaryRMMCRMBCMember_019fdc74-410d-7267-9018-9c11836f7b89" xlink:href="tap-20260930.xsd#tap_VariableInterestEntityPrimaryBeneficiaryRMMCRMBCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_019fdc74-410d-7b81-aa9e-4758cb31a050" xlink:to="loc_tap_VariableInterestEntityPrimaryBeneficiaryRMMCRMBCMember_019fdc74-410d-7267-9018-9c11836f7b89" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019fdc74-410d-708d-afbd-4486c36f97d8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_019fdc74-410d-784c-b262-5a794185d138" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019fdc74-410d-708d-afbd-4486c36f97d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019fdc74-410d-708d-afbd-4486c36f97d8_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019fdc74-410d-708d-afbd-4486c36f97d8" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019fdc74-410d-708d-afbd-4486c36f97d8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019fdc74-410d-72af-8dc7-ea6dd638bbf4" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019fdc74-410d-708d-afbd-4486c36f97d8" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019fdc74-410d-72af-8dc7-ea6dd638bbf4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_FeverTreeUSAMember_019fdc74-410d-7199-814c-4bad7ca8480a" xlink:href="tap-20260930.xsd#tap_FeverTreeUSAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019fdc74-410d-72af-8dc7-ea6dd638bbf4" xlink:to="loc_tap_FeverTreeUSAMember_019fdc74-410d-7199-814c-4bad7ca8480a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019fdc74-410d-741c-bd80-287b35ea4ec0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7066-8ffe-6e2415c7ac84" xlink:to="loc_us-gaap_InventoryNet_019fdc74-410d-741c-bd80-287b35ea4ec0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019fdc74-410d-7c4f-a830-3493805b014b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7066-8ffe-6e2415c7ac84" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019fdc74-410d-7c4f-a830-3493805b014b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_019fdc74-410d-7f4f-b0a7-94432dcd2617" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7066-8ffe-6e2415c7ac84" xlink:to="loc_us-gaap_EquityMethodInvestments_019fdc74-410d-7f4f-b0a7-94432dcd2617" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_019fdc74-410d-7378-a795-acc5fd78fbca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7066-8ffe-6e2415c7ac84" xlink:to="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_019fdc74-410d-7378-a795-acc5fd78fbca" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_019fdc74-410d-756a-b0dd-273da6853c0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_019fdc74-410d-7066-8ffe-6e2415c7ac84" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_019fdc74-410d-756a-b0dd-273da6853c0d" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/GoodwillandIntangibleAssetsChangesinGoodwillDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#GoodwillandIntangibleAssetsChangesinGoodwillDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/GoodwillandIntangibleAssetsChangesinGoodwillDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_019fdc74-410d-79b8-a925-750c9cfc6681" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_019fdc74-410d-7dd6-acd3-d963508af084" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_019fdc74-410d-79b8-a925-750c9cfc6681" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_019fdc74-410d-7dd6-acd3-d963508af084" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitAxis_019fdc74-410d-748c-8a2e-d2e9aa740b06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_019fdc74-410d-7dd6-acd3-d963508af084" xlink:to="loc_us-gaap_ReportingUnitAxis_019fdc74-410d-748c-8a2e-d2e9aa740b06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_019fdc74-410d-748c-8a2e-d2e9aa740b06_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReportingUnitAxis_019fdc74-410d-748c-8a2e-d2e9aa740b06" xlink:to="loc_us-gaap_ReportingUnitDomain_019fdc74-410d-748c-8a2e-d2e9aa740b06_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_019fdc74-410d-7800-a020-1705bf37f38f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReportingUnitAxis_019fdc74-410d-748c-8a2e-d2e9aa740b06" xlink:to="loc_us-gaap_ReportingUnitDomain_019fdc74-410d-7800-a020-1705bf37f38f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasReportingUnitMember_019fdc74-410d-7f80-bee7-d376833ff4ff" xlink:href="tap-20260930.xsd#tap_AmericasReportingUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_019fdc74-410d-7800-a020-1705bf37f38f" xlink:to="loc_tap_AmericasReportingUnitMember_019fdc74-410d-7f80-bee7-d376833ff4ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EMEAAPACMember_019fdc74-410d-72bd-a371-9362ccad4d63" xlink:href="tap-20260930.xsd#tap_EMEAAPACMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_019fdc74-410d-7800-a020-1705bf37f38f" xlink:to="loc_tap_EMEAAPACMember_019fdc74-410d-72bd-a371-9362ccad4d63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_019fdc74-410d-726d-8462-3386fcde59d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019fdc74-410d-79b8-a925-750c9cfc6681" xlink:to="loc_us-gaap_GoodwillRollForward_019fdc74-410d-726d-8462-3386fcde59d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019fdc74-410d-75f9-bc59-365fa8ce57b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_019fdc74-410d-726d-8462-3386fcde59d0" xlink:to="loc_us-gaap_Goodwill_019fdc74-410d-75f9-bc59-365fa8ce57b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_019fdc74-410d-7a6f-b988-b1df0223e5d7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_019fdc74-410d-726d-8462-3386fcde59d0" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_019fdc74-410d-7a6f-b988-b1df0223e5d7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_019fdc74-410d-730a-8ffd-855e5cf680d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_019fdc74-410d-726d-8462-3386fcde59d0" xlink:to="loc_us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments_019fdc74-410d-730a-8ffd-855e5cf680d6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019fdc74-410d-712f-a175-d8b1fe8fda78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_019fdc74-410d-7144-8455-dface42d8a03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019fdc74-410d-79b8-a925-750c9cfc6681" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_019fdc74-410d-7144-8455-dface42d8a03" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#GoodwillandIntangibleAssetsIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019fdc74-410d-75ad-86eb-43d3b63bd9d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019fdc74-410d-7c39-a47e-69fad0f7c3ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019fdc74-410d-75ad-86eb-43d3b63bd9d1" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019fdc74-410d-7c39-a47e-69fad0f7c3ad" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019fdc74-410d-7466-8ccf-1fea5533f934" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019fdc74-410d-7c39-a47e-69fad0f7c3ad" xlink:to="loc_srt_RangeAxis_019fdc74-410d-7466-8ccf-1fea5533f934" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019fdc74-410d-7466-8ccf-1fea5533f934_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019fdc74-410d-7466-8ccf-1fea5533f934" xlink:to="loc_srt_RangeMember_019fdc74-410d-7466-8ccf-1fea5533f934_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019fdc74-410d-76e3-afda-cc35d68196d7" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019fdc74-410d-7466-8ccf-1fea5533f934" xlink:to="loc_srt_RangeMember_019fdc74-410d-76e3-afda-cc35d68196d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019fdc74-410d-7cf7-a210-8bf98727efca" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019fdc74-410d-76e3-afda-cc35d68196d7" xlink:to="loc_srt_MinimumMember_019fdc74-410d-7cf7-a210-8bf98727efca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019fdc74-410d-7362-a731-a76697fdda48" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019fdc74-410d-76e3-afda-cc35d68196d7" xlink:to="loc_srt_MaximumMember_019fdc74-410d-7362-a731-a76697fdda48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7aaf-9a90-4cf7ba8e3612" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019fdc74-410d-7c39-a47e-69fad0f7c3ad" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7aaf-9a90-4cf7ba8e3612" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7aaf-9a90-4cf7ba8e3612_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7aaf-9a90-4cf7ba8e3612" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7aaf-9a90-4cf7ba8e3612_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7adb-ba0a-3cb037557b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7aaf-9a90-4cf7ba8e3612" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7adb-ba0a-3cb037557b7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_BrandsMember_019fdc74-410d-7886-a6da-75b541126779" xlink:href="tap-20260930.xsd#tap_BrandsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7adb-ba0a-3cb037557b7d" xlink:to="loc_tap_BrandsMember_019fdc74-410d-7886-a6da-75b541126779" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DistributionRightsMember_019fdc74-410d-7a0a-b8bd-8b6e43ba682e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DistributionRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7adb-ba0a-3cb037557b7d" xlink:to="loc_us-gaap_DistributionRightsMember_019fdc74-410d-7a0a-b8bd-8b6e43ba682e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_019fdc74-410d-7fb9-b901-b4ffa7f766ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7adb-ba0a-3cb037557b7d" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_019fdc74-410d-7fb9-b901-b4ffa7f766ca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019fdc74-410d-721a-a4e5-c88e76a55f04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019fdc74-410d-75ad-86eb-43d3b63bd9d1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019fdc74-410d-721a-a4e5-c88e76a55f04" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019fdc74-410d-7f65-bbe9-d7243c70dcec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019fdc74-410d-75ad-86eb-43d3b63bd9d1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019fdc74-410d-7f65-bbe9-d7243c70dcec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019fdc74-410d-735d-ae65-8bb722dc96a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019fdc74-410d-75ad-86eb-43d3b63bd9d1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019fdc74-410d-735d-ae65-8bb722dc96a2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019fdc74-410d-7a8e-84f9-56e5e871d022" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019fdc74-410d-75ad-86eb-43d3b63bd9d1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019fdc74-410d-7a8e-84f9-56e5e871d022" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019fdc74-410d-7a3a-9ce5-e8ec5ed52874" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_019fdc74-410d-776b-9bbf-f2f21945535f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019fdc74-410d-7a3a-9ce5-e8ec5ed52874" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_019fdc74-410d-776b-9bbf-f2f21945535f" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7a3a-8219-1adc6ecea3d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_019fdc74-410d-776b-9bbf-f2f21945535f" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7a3a-8219-1adc6ecea3d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7a3a-8219-1adc6ecea3d0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7a3a-8219-1adc6ecea3d0" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7a3a-8219-1adc6ecea3d0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7f47-8ecb-b444dc2337a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019fdc74-410d-7a3a-8219-1adc6ecea3d0" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7f47-8ecb-b444dc2337a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_BrandsMember_019fdc74-410d-7515-8497-512399a97168" xlink:href="tap-20260930.xsd#tap_BrandsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7f47-8ecb-b444dc2337a1" xlink:to="loc_tap_BrandsMember_019fdc74-410d-7515-8497-512399a97168" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DistributionNetworksMember_019fdc74-410d-73d5-be7b-ba868d554c3c" xlink:href="tap-20260930.xsd#tap_DistributionNetworksMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7f47-8ecb-b444dc2337a1" xlink:to="loc_tap_DistributionNetworksMember_019fdc74-410d-73d5-be7b-ba868d554c3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_019fdc74-410d-7c98-8009-6b1978ca4601" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019fdc74-410d-7f47-8ecb-b444dc2337a1" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_019fdc74-410d-7c98-8009-6b1978ca4601" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_019fdc74-410d-731a-b7de-d1a36e81f0d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019fdc74-410d-7a3a-9ce5-e8ec5ed52874" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_019fdc74-410d-731a-b7de-d1a36e81f0d1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/GoodwillandIntangibleAssetsNarrativeDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#GoodwillandIntangibleAssetsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/GoodwillandIntangibleAssetsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_01a15923-6583-7263-b6d5-b7b6f5eb609c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_01a15923-6583-7779-90f2-2d9ffa3d5103" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_01a15923-6583-7263-b6d5-b7b6f5eb609c" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_01a15923-6583-7779-90f2-2d9ffa3d5103" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitAxis_01a15924-04ea-7e2d-9121-fd649f5633ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_01a15923-6583-7779-90f2-2d9ffa3d5103" xlink:to="loc_us-gaap_ReportingUnitAxis_01a15924-04ea-7e2d-9121-fd649f5633ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_01a15924-04ea-7e2d-9121-fd649f5633ba_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReportingUnitAxis_01a15924-04ea-7e2d-9121-fd649f5633ba" xlink:to="loc_us-gaap_ReportingUnitDomain_01a15924-04ea-7e2d-9121-fd649f5633ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_01a15924-04ea-798e-b446-b8dda59a3739" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReportingUnitAxis_01a15924-04ea-7e2d-9121-fd649f5633ba" xlink:to="loc_us-gaap_ReportingUnitDomain_01a15924-04ea-798e-b446-b8dda59a3739" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasReportingUnitMember_01a15924-2db8-7f3b-b277-7561ba762bba" xlink:href="tap-20260930.xsd#tap_AmericasReportingUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_01a15924-04ea-798e-b446-b8dda59a3739" xlink:to="loc_tap_AmericasReportingUnitMember_01a15924-2db8-7f3b-b277-7561ba762bba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EMEAAPACMember_01a15fee-bced-70e7-a775-f128fdded683" xlink:href="tap-20260930.xsd#tap_EMEAAPACMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_01a15924-04ea-798e-b446-b8dda59a3739" xlink:to="loc_tap_EMEAAPACMember_01a15fee-bced-70e7-a775-f128fdded683" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_01a18e2d-40d1-71a6-a727-04fa27c51ebd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_01a15923-6583-7779-90f2-2d9ffa3d5103" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_01a18e2d-40d1-71a6-a727-04fa27c51ebd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_01a18e2d-40d1-71a6-a727-04fa27c51ebd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_01a18e2d-40d1-71a6-a727-04fa27c51ebd" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_01a18e2d-40d1-71a6-a727-04fa27c51ebd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_01a18e2d-40d1-7438-a2de-43168db80b1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_01a18e2d-40d1-71a6-a727-04fa27c51ebd" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_01a18e2d-40d1-7438-a2de-43168db80b1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_BrandsMember_01a18e2d-40d1-7444-bbfe-5615321938af" xlink:href="tap-20260930.xsd#tap_BrandsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_01a18e2d-40d1-7438-a2de-43168db80b1c" xlink:to="loc_tap_BrandsMember_01a18e2d-40d1-7444-bbfe-5615321938af" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_01a15923-6583-76c4-9e4d-ff271d4cf86b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_01a15923-6583-7263-b6d5-b7b6f5eb609c" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_01a15923-6583-76c4-9e4d-ff271d4cf86b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019fdc74-410d-74f2-a2ed-bd323962104d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_01a15923-6583-7263-b6d5-b7b6f5eb609c" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019fdc74-410d-74f2-a2ed-bd323962104d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_01a15fee-bced-7d84-81b1-a8f0fd61e7b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_01a15923-6583-7263-b6d5-b7b6f5eb609c" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_01a15fee-bced-7d84-81b1-a8f0fd61e7b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_01a15fef-6ea9-72b9-ab10-9e86ef59c8ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_01a15923-6583-7263-b6d5-b7b6f5eb609c" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_01a15fef-6ea9-72b9-ab10-9e86ef59c8ba" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DebtScheduleofDebtObligationsDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DebtScheduleofDebtObligationsDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DebtScheduleofDebtObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-72ff-bf49-74c6cf278707" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-72ff-bf49-74c6cf278707" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-72ff-bf49-74c6cf278707_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-72ff-bf49-74c6cf278707" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-72ff-bf49-74c6cf278707_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7187-9022-bc5ede153cbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-72ff-bf49-74c6cf278707" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7187-9022-bc5ede153cbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019fdc74-410d-7cc6-912d-57580ef46a95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7187-9022-bc5ede153cbb" xlink:to="loc_us-gaap_SeniorNotesMember_019fdc74-410d-7cc6-912d-57580ef46a95" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_OtherLongTermDebtMember_019fdc74-410d-7192-b8f5-09e5acb939d7" xlink:href="tap-20260930.xsd#tap_OtherLongTermDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7187-9022-bc5ede153cbb" xlink:to="loc_tap_OtherLongTermDebtMember_019fdc74-410d-7192-b8f5-09e5acb939d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7eff-b015-65d1d1ad8d9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:to="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7eff-b015-65d1d1ad8d9f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7eff-b015-65d1d1ad8d9f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7eff-b015-65d1d1ad8d9f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7eff-b015-65d1d1ad8d9f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7eff-b015-65d1d1ad8d9f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_CAD500million3.44notesdue2026Member_019fdc74-410d-7415-b1a5-04b3be149088" xlink:href="tap-20260930.xsd#tap_CAD500million3.44notesdue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_CAD500million3.44notesdue2026Member_019fdc74-410d-7415-b1a5-04b3be149088" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_A20Billion30NotesDue2026Member_019fdc74-410d-7692-87e5-a7110a73b30e" xlink:href="tap-20260930.xsd#tap_A20Billion30NotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_A20Billion30NotesDue2026Member_019fdc74-410d-7692-87e5-a7110a73b30e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_A500Million4.9NotesDue2031Member_019fdc74-410d-78cb-bfbd-4920b958a819" xlink:href="tap-20260930.xsd#tap_A500Million4.9NotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_A500Million4.9NotesDue2031Member_019fdc74-410d-78cb-bfbd-4920b958a819" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EUR800Million3.8NotesDue2032Member_019fdc74-410d-7a07-8fa5-352145fd8a85" xlink:href="tap-20260930.xsd#tap_EUR800Million3.8NotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_EUR800Million3.8NotesDue2032Member_019fdc74-410d-7a07-8fa5-352145fd8a85" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_CAD500Million4.3SeniorNotesDue2033Member_019fdc74-410d-79a9-a398-40267fd3052d" xlink:href="tap-20260930.xsd#tap_CAD500Million4.3SeniorNotesDue2033Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_CAD500Million4.3SeniorNotesDue2033Member_019fdc74-410d-79a9-a398-40267fd3052d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_A1.0Billion5.5SeniorNotesDue2036Member_019fdc74-410d-7331-84b0-0aa07d363c49" xlink:href="tap-20260930.xsd#tap_A1.0Billion5.5SeniorNotesDue2036Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_A1.0Billion5.5SeniorNotesDue2036Member_019fdc74-410d-7331-84b0-0aa07d363c49" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_A11Billion50NotesDue2042Member_019fdc74-410d-7f93-89a0-7ec7b789ce16" xlink:href="tap-20260930.xsd#tap_A11Billion50NotesDue2042Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_A11Billion50NotesDue2042Member_019fdc74-410d-7f93-89a0-7ec7b789ce16" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_A1.8billion4.2notesdue2046Member_019fdc74-410d-7f01-905b-cc0e56d10ec8" xlink:href="tap-20260930.xsd#tap_A1.8billion4.2notesdue2046Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7be7-98d7-e55696b58ee4" xlink:to="loc_tap_A1.8billion4.2notesdue2046Member_019fdc74-410d-7f01-905b-cc0e56d10ec8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7baf-99a7-182ec08bdbf3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7baf-99a7-182ec08bdbf3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7baf-99a7-182ec08bdbf3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7baf-99a7-182ec08bdbf3" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7baf-99a7-182ec08bdbf3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7424-9c4d-c6a9e58ade81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7baf-99a7-182ec08bdbf3" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7424-9c4d-c6a9e58ade81" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-7cae-9927-dbfba75771a5" xlink:href="tap-20260930.xsd#tap_ForwardStartingInterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7424-9c4d-c6a9e58ade81" xlink:to="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-7cae-9927-dbfba75771a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_019fdc74-410d-789d-aa28-e99baf98d53a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_019fdc74-410d-789d-aa28-e99baf98d53a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019fdc74-410d-789d-aa28-e99baf98d53a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019fdc74-410d-789d-aa28-e99baf98d53a" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019fdc74-410d-789d-aa28-e99baf98d53a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019fdc74-410d-743d-97fd-cec484ebfe5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019fdc74-410d-789d-aa28-e99baf98d53a" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019fdc74-410d-743d-97fd-cec484ebfe5e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_USDCADAndGBPOverdraftFacilityMember_019fdc74-410d-736f-bedd-d87eaaac8f2d" xlink:href="tap-20260930.xsd#tap_USDCADAndGBPOverdraftFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_019fdc74-410d-743d-97fd-cec484ebfe5e" xlink:to="loc_tap_USDCADAndGBPOverdraftFacilityMember_019fdc74-410d-736f-bedd-d87eaaac8f2d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitAxis_01a14188-3797-7931-ab11-0c82ca9ee46b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:to="loc_us-gaap_ReportingUnitAxis_01a14188-3797-7931-ab11-0c82ca9ee46b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_01a14188-3797-7931-ab11-0c82ca9ee46b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReportingUnitAxis_01a14188-3797-7931-ab11-0c82ca9ee46b" xlink:to="loc_us-gaap_ReportingUnitDomain_01a14188-3797-7931-ab11-0c82ca9ee46b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_01a14188-3797-74c0-b1c9-a2ebf77e6427" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReportingUnitAxis_01a14188-3797-7931-ab11-0c82ca9ee46b" xlink:to="loc_us-gaap_ReportingUnitDomain_01a14188-3797-74c0-b1c9-a2ebf77e6427" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EMEAAPACMember_01a14188-3797-73c6-9cba-a6d1a47d9338" xlink:href="tap-20260930.xsd#tap_EMEAAPACMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_01a14188-3797-74c0-b1c9-a2ebf77e6427" xlink:to="loc_tap_EMEAAPACMember_01a14188-3797-73c6-9cba-a6d1a47d9338" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasSegmentMember_01a14188-3797-7319-9688-dafdfee20bb9" xlink:href="tap-20260930.xsd#tap_AmericasSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_01a14188-3797-74c0-b1c9-a2ebf77e6427" xlink:to="loc_tap_AmericasSegmentMember_01a14188-3797-7319-9688-dafdfee20bb9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_01a14531-67c7-7195-a601-a75d74828ff5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-76a3-8466-3fa4ee0e586c" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_01a14531-67c7-7195-a601-a75d74828ff5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a14531-67c7-7195-a601-a75d74828ff5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_01a14531-67c7-7195-a601-a75d74828ff5" xlink:to="loc_us-gaap_SegmentDomain_01a14531-67c7-7195-a601-a75d74828ff5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_01a14531-67c7-7f07-91a5-2072255b3b8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_01a14531-67c7-7195-a601-a75d74828ff5" xlink:to="loc_us-gaap_SegmentDomain_01a14531-67c7-7f07-91a5-2072255b3b8c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember_01a14531-67c7-7820-84f3-373df3f1e164" xlink:href="tap-20260930.xsd#tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_01a14531-67c7-7f07-91a5-2072255b3b8c" xlink:to="loc_tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember_01a14531-67c7-7820-84f3-373df3f1e164" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019fdc74-410d-7add-bf85-3b951b2dfea9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019fdc74-410d-7add-bf85-3b951b2dfea9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019fdc74-410d-7cea-84fd-e47e43c102b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019fdc74-410d-7cea-84fd-e47e43c102b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019fdc74-410d-7fe4-aa40-8cfcde3ac97f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019fdc74-410d-7fe4-aa40-8cfcde3ac97f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_019fdc74-410d-74fc-8ffb-1c213d3b0078" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_FinanceLeaseLiability_019fdc74-410d-74fc-8ffb-1c213d3b0078" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_019fdc74-410d-722d-ae76-c63ce0528bbc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_019fdc74-410d-722d-ae76-c63ce0528bbc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019fdc74-410d-791d-ad60-c4f9b0168e57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_LongTermDebt_019fdc74-410d-791d-ad60-c4f9b0168e57" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019fdc74-410d-79a2-9929-143d4673019b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_LongTermDebtCurrent_019fdc74-410d-79a2-9929-143d4673019b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019fdc74-410d-7ed6-8551-910e74b64479" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019fdc74-410d-7ed6-8551-910e74b64479" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaper_01a15926-ec52-7058-b25f-2a755eee8988" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommercialPaper"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_CommercialPaper_01a15926-ec52-7058-b25f-2a755eee8988" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_019fdc74-410d-7135-8382-61f075e29768" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_OtherShortTermBorrowings_019fdc74-410d-7135-8382-61f075e29768" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_019fdc74-410d-7f14-96e1-b099475a2a94" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DebtCurrent_019fdc74-410d-7f14-96e1-b099475a2a94" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_019fdc74-410d-7841-b1b5-e9c42bacc3cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_019fdc74-410d-7841-b1b5-e9c42bacc3cb" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019fdc74-410d-7da2-ac74-4698b1d18685" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019fdc74-410d-7da2-ac74-4698b1d18685" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-7703-8ffc-743048441ba3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-7703-8ffc-743048441ba3" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7c52-94ee-8ffe6fab677a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7c52-94ee-8ffe6fab677a" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BankOverdrafts_019fdc74-410d-7a16-9626-6c3df92977f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BankOverdrafts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_BankOverdrafts_019fdc74-410d-7a16-9626-6c3df92977f5" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_CashHeldinBank_019fdc74-410d-7da2-8c31-05c40213a59b" xlink:href="tap-20260930.xsd#tap_CashHeldinBank"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_tap_CashHeldinBank_019fdc74-410d-7da2-8c31-05c40213a59b" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_CashHeldinBankNetofBankOverdrafts_019fdc74-410d-7e46-89b5-fcb5f1baff8e" xlink:href="tap-20260930.xsd#tap_CashHeldinBankNetofBankOverdrafts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_tap_CashHeldinBankNetofBankOverdrafts_019fdc74-410d-7e46-89b5-fcb5f1baff8e" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019fdc74-410d-715c-a527-bb7d40320d8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-7a3d-b2d5-8a85544d50d4" xlink:to="loc_us-gaap_ShortTermBorrowings_019fdc74-410d-715c-a527-bb7d40320d8e" xlink:type="arc" order="18"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DebtNarrativeDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DebtNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-740d-998e-6b069a8e517c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-740d-998e-6b069a8e517c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019fdc74-410d-7bef-850f-07ee382eff86" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-740d-998e-6b069a8e517c" xlink:to="loc_us-gaap_CreditFacilityAxis_019fdc74-410d-7bef-850f-07ee382eff86" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019fdc74-410d-7bef-850f-07ee382eff86_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019fdc74-410d-7bef-850f-07ee382eff86" xlink:to="loc_us-gaap_CreditFacilityDomain_019fdc74-410d-7bef-850f-07ee382eff86_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019fdc74-410d-7922-be0d-96e573ff48a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019fdc74-410d-7bef-850f-07ee382eff86" xlink:to="loc_us-gaap_CreditFacilityDomain_019fdc74-410d-7922-be0d-96e573ff48a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019fdc74-410d-7d02-8920-1910b89f659a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019fdc74-410d-7922-be0d-96e573ff48a0" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019fdc74-410d-7d02-8920-1910b89f659a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7c8c-b07f-44283bb9bac8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-740d-998e-6b069a8e517c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7c8c-b07f-44283bb9bac8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7c8c-b07f-44283bb9bac8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7c8c-b07f-44283bb9bac8" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7c8c-b07f-44283bb9bac8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-70e3-9678-239e0d123d57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7c8c-b07f-44283bb9bac8" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-70e3-9678-239e0d123d57" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_019fdc74-410d-7798-8ceb-79b8e0e59f03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommercialPaperMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-70e3-9678-239e0d123d57" xlink:to="loc_us-gaap_CommercialPaperMember_019fdc74-410d-7798-8ceb-79b8e0e59f03" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019fdc74-410d-708f-b030-562ee517294f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-70e3-9678-239e0d123d57" xlink:to="loc_us-gaap_LineOfCreditMember_019fdc74-410d-708f-b030-562ee517294f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_01a0b05f-53ad-7f21-882c-31269041dba2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-740d-998e-6b069a8e517c" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_01a0b05f-53ad-7f21-882c-31269041dba2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_01a0b05f-53ad-7f21-882c-31269041dba2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_01a0b05f-53ad-7f21-882c-31269041dba2" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_01a0b05f-53ad-7f21-882c-31269041dba2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_01a0b05f-53ad-7f1c-a2f1-e854da026975" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_01a0b05f-53ad-7f21-882c-31269041dba2" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_01a0b05f-53ad-7f1c-a2f1-e854da026975" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_01a0b05f-53ad-72a6-8d5a-a42ca503cc8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_01a0b05f-53ad-7f1c-a2f1-e854da026975" xlink:to="loc_us-gaap_SubsequentEventMember_01a0b05f-53ad-72a6-8d5a-a42ca503cc8b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DebtCovenantPeriodAxis_019fdc74-410d-7430-b99e-54b4e3e1a7d7" xlink:href="tap-20260930.xsd#tap_DebtCovenantPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-740d-998e-6b069a8e517c" xlink:to="loc_tap_DebtCovenantPeriodAxis_019fdc74-410d-7430-b99e-54b4e3e1a7d7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DebtCovenantPeriodDomain_019fdc74-410d-7430-b99e-54b4e3e1a7d7_default" xlink:href="tap-20260930.xsd#tap_DebtCovenantPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_tap_DebtCovenantPeriodAxis_019fdc74-410d-7430-b99e-54b4e3e1a7d7" xlink:to="loc_tap_DebtCovenantPeriodDomain_019fdc74-410d-7430-b99e-54b4e3e1a7d7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DebtCovenantPeriodDomain_019fdc74-410d-71f7-ac3f-873dca19b65c" xlink:href="tap-20260930.xsd#tap_DebtCovenantPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_tap_DebtCovenantPeriodAxis_019fdc74-410d-7430-b99e-54b4e3e1a7d7" xlink:to="loc_tap_DebtCovenantPeriodDomain_019fdc74-410d-71f7-ac3f-873dca19b65c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_QuarterEndingSeptember302026Member_01a05834-1315-7530-9c7c-0ce2c36c5030" xlink:href="tap-20260930.xsd#tap_QuarterEndingSeptember302026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DebtCovenantPeriodDomain_019fdc74-410d-71f7-ac3f-873dca19b65c" xlink:to="loc_tap_QuarterEndingSeptember302026Member_01a05834-1315-7530-9c7c-0ce2c36c5030" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_01a18de5-1ea0-7857-9708-e26debcf61d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fdc74-410d-740d-998e-6b069a8e517c" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_01a18de5-1ea0-7857-9708-e26debcf61d5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_01a18de5-1ea0-7857-9708-e26debcf61d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_01a18de5-1ea0-7857-9708-e26debcf61d5" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_01a18de5-1ea0-7857-9708-e26debcf61d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_01a18de5-1ea0-789a-a531-8df6e3921988" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_01a18de5-1ea0-7857-9708-e26debcf61d5" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_01a18de5-1ea0-789a-a531-8df6e3921988" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_01a18de5-3c4a-7789-8bd1-4387e85ce4ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommercialPaperMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_01a18de5-1ea0-789a-a531-8df6e3921988" xlink:to="loc_us-gaap_CommercialPaperMember_01a18de5-3c4a-7789-8bd1-4387e85ce4ce" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_019fdc74-410d-74ba-9e37-f42651c71e16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_LongTermDebtFairValue_019fdc74-410d-74ba-9e37-f42651c71e16" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019fdc74-410d-7eca-9845-ab62a7c4da3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019fdc74-410d-7eca-9845-ab62a7c4da3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaper_01a1592c-a4bd-774d-a23b-c3aa3f00e37d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommercialPaper"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_CommercialPaper_01a1592c-a4bd-774d-a23b-c3aa3f00e37d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_01a1592f-81be-7eb3-9567-d059b525f0e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_01a1592f-81be-7eb3-9567-d059b525f0e0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_01a1592f-d156-7781-8fac-cbb4397d6905" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_DebtInstrumentTerm_01a1592f-d156-7781-8fac-cbb4397d6905" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_019fdc74-410d-7cbd-8539-9e3f18249f99" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_LineOfCredit_019fdc74-410d-7cbd-8539-9e3f18249f99" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019fdc74-410d-7cf6-9c53-785f7f070193" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_019fdc74-410d-7cf6-9c53-785f7f070193" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DebtInstrumentCovenantTermsQuarterlyLeverageRatioFurtherReduction_019fdc74-410d-74c1-ac75-8a582555eb49" xlink:href="tap-20260930.xsd#tap_DebtInstrumentCovenantTermsQuarterlyLeverageRatioFurtherReduction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fdc74-410d-74d7-a934-633c702b27e2" xlink:to="loc_tap_DebtInstrumentCovenantTermsQuarterlyLeverageRatioFurtherReduction_019fdc74-410d-74c1-ac75-8a582555eb49" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesNarrativeDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7c67-8752-11928d49bd81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019fdc74-410d-7bdb-8a62-4d1016d87eb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7c67-8752-11928d49bd81" xlink:to="loc_us-gaap_DerivativeTable_019fdc74-410d-7bdb-8a62-4d1016d87eb9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-735b-bb90-411fea35d737" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019fdc74-410d-7bdb-8a62-4d1016d87eb9" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-735b-bb90-411fea35d737" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-735b-bb90-411fea35d737_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-735b-bb90-411fea35d737" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-735b-bb90-411fea35d737_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-74f1-8823-7ef8f8116d60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-735b-bb90-411fea35d737" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-74f1-8823-7ef8f8116d60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-795d-92fe-234c75e7ac18" xlink:href="tap-20260930.xsd#tap_ForwardStartingInterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-74f1-8823-7ef8f8116d60" xlink:to="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-795d-92fe-234c75e7ac18" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-735f-878f-41bf3a20a5b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7c67-8752-11928d49bd81" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-735f-878f-41bf3a20a5b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7239-ad24-9b44ed9e6220" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7c67-8752-11928d49bd81" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7239-ad24-9b44ed9e6220" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_019fdc74-410d-7f24-8c98-9dda4751fdaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7c67-8752-11928d49bd81" xlink:to="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_019fdc74-410d-7f24-8c98-9dda4751fdaa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MaximumLengthOfTimeHedgedInCashFlowHedge1_019fdc74-410d-738e-a9e0-f79dcb8e873f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MaximumLengthOfTimeHedgedInCashFlowHedge1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7c67-8752-11928d49bd81" xlink:to="loc_us-gaap_MaximumLengthOfTimeHedgedInCashFlowHedge1_019fdc74-410d-738e-a9e0-f79dcb8e873f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesDerivativeFairValueDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesDerivativeFairValueDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesDerivativeFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019fdc74-410d-7fcb-bcac-ae873b17184e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019fdc74-410d-789e-976b-842e9f98526b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019fdc74-410d-7fcb-bcac-ae873b17184e" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019fdc74-410d-789e-976b-842e9f98526b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7c6c-8cc6-1031f23df1f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019fdc74-410d-789e-976b-842e9f98526b" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7c6c-8cc6-1031f23df1f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7c6c-8cc6-1031f23df1f9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7c6c-8cc6-1031f23df1f9" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7c6c-8cc6-1031f23df1f9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a06-9a42-a104af6ca9f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7c6c-8cc6-1031f23df1f9" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a06-9a42-a104af6ca9f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-72a3-a985-93271294450d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a06-9a42-a104af6ca9f4" xlink:to="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-72a3-a985-93271294450d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7022-92a6-24ed619e29db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a06-9a42-a104af6ca9f4" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7022-92a6-24ed619e29db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityContractMember_019fdc74-410d-7cf2-b540-ff341d1307b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a06-9a42-a104af6ca9f4" xlink:to="loc_us-gaap_CommodityContractMember_019fdc74-410d-7cf2-b540-ff341d1307b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019fdc74-410d-7f26-a47c-372c0a47aeeb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019fdc74-410d-789e-976b-842e9f98526b" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019fdc74-410d-7f26-a47c-372c0a47aeeb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019fdc74-410d-7f26-a47c-372c0a47aeeb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019fdc74-410d-7f26-a47c-372c0a47aeeb" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019fdc74-410d-7f26-a47c-372c0a47aeeb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019fdc74-410d-79bf-9493-1ef68b2bb5bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019fdc74-410d-7f26-a47c-372c0a47aeeb" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019fdc74-410d-79bf-9493-1ef68b2bb5bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019fdc74-410d-7067-98ef-9ebb750c6332" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019fdc74-410d-79bf-9493-1ef68b2bb5bc" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019fdc74-410d-7067-98ef-9ebb750c6332" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019fdc74-410d-7160-adbd-82d1afa673ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019fdc74-410d-789e-976b-842e9f98526b" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019fdc74-410d-7160-adbd-82d1afa673ba" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019fdc74-410d-7160-adbd-82d1afa673ba_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019fdc74-410d-7160-adbd-82d1afa673ba" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019fdc74-410d-7160-adbd-82d1afa673ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019fdc74-410d-7ce9-a852-03b2b586a698" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019fdc74-410d-7160-adbd-82d1afa673ba" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019fdc74-410d-7ce9-a852-03b2b586a698" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_019fdc74-410d-7539-bb6e-61ac0de27830" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019fdc74-410d-7ce9-a852-03b2b586a698" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_019fdc74-410d-7539-bb6e-61ac0de27830" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_019fdc74-410d-7fe8-b179-db74b93e7124" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019fdc74-410d-7fcb-bcac-ae873b17184e" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeNet_019fdc74-410d-7fe8-b179-db74b93e7124" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesFairValueBalanceSheetDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesFairValueBalanceSheetDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesFairValueBalanceSheetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:to="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019fdc74-410d-73aa-b2f8-9942aa24ca81" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:to="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019fdc74-410d-73aa-b2f8-9942aa24ca81" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-720b-bc49-b0ea3a401711_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-720b-bc49-b0ea3a401711_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-7a36-9979-811c38740d25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-7a36-9979-811c38740d25" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7062-9123-0750a310d071" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7062-9123-0750a310d071" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityContractMember_019fdc74-410d-773b-9d32-cd4d0824ff1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_CommodityContractMember_019fdc74-410d-773b-9d32-cd4d0824ff1b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7dfa-8bcd-e78847da6d05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7dfa-8bcd-e78847da6d05" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:to="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7f41-95dd-c40637277029_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7f41-95dd-c40637277029_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019fdc74-410d-7e7c-9ec5-b7985de60c60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019fdc74-410d-7e7c-9ec5-b7985de60c60" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ece-9092-2f8bd41d6dd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:to="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ece-9092-2f8bd41d6dd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-739c-8f69-300ec5697403_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-739c-8f69-300ec5697403_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-751b-9076-dfbd1207cb85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-751b-9076-dfbd1207cb85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-7136-be72-54e4377c3b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-751b-9076-dfbd1207cb85" xlink:to="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-7136-be72-54e4377c3b6c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:href="tap-20260930.xsd#tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:to="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-74f5-946d-b6062a1eb5ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-74f5-946d-b6062a1eb5ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue_019fdc74-410d-71d7-8bbb-ef982d60d357" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:to="loc_us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue_019fdc74-410d-71d7-8bbb-ef982d60d357" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue_019fdc74-410d-7539-bd50-e7c6d169bfe7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:to="loc_us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue_019fdc74-410d-7539-bd50-e7c6d169bfe7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:href="tap-20260930.xsd#tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:to="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-7d39-9864-899c90defa58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue_019fdc74-410d-76eb-8abb-31f9f3cf43e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue_019fdc74-410d-76eb-8abb-31f9f3cf43e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_019fdc74-410d-7d9b-ad50-f29ef281ff3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_019fdc74-410d-7d9b-ad50-f29ef281ff3f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesFairValueBalanceSheetDetails_1" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesFairValueBalanceSheetDetails_1"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesFairValueBalanceSheetDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:to="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-720b-bc49-b0ea3a401711_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-720b-bc49-b0ea3a401711_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-720b-bc49-b0ea3a401711" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-7a36-9979-811c38740d25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-7a36-9979-811c38740d25" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7062-9123-0750a310d071" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7062-9123-0750a310d071" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityContractMember_019fdc74-410d-773b-9d32-cd4d0824ff1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_CommodityContractMember_019fdc74-410d-773b-9d32-cd4d0824ff1b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7dfa-8bcd-e78847da6d05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-76f4-bbbc-570c3aa9de4e" xlink:to="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7dfa-8bcd-e78847da6d05" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:to="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7f41-95dd-c40637277029_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7f41-95dd-c40637277029_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-7f41-95dd-c40637277029" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019fdc74-410d-7e7c-9ec5-b7985de60c60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_019fdc74-410d-7e7c-9ec5-b7985de60c60" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ece-9092-2f8bd41d6dd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7e5a-a8b0-87d3bdc67c05" xlink:to="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ece-9092-2f8bd41d6dd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_019fdc74-410d-7bb6-a928-74b93996e2b3" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-739c-8f69-300ec5697403_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-739c-8f69-300ec5697403_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-751b-9076-dfbd1207cb85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-739c-8f69-300ec5697403" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-751b-9076-dfbd1207cb85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-7136-be72-54e4377c3b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-751b-9076-dfbd1207cb85" xlink:to="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-7136-be72-54e4377c3b6c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:href="tap-20260930.xsd#tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:to="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-74f5-946d-b6062a1eb5ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-74f5-946d-b6062a1eb5ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue_019fdc74-410d-71d7-8bbb-ef982d60d357" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:to="loc_us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue_019fdc74-410d-71d7-8bbb-ef982d60d357" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue_019fdc74-410d-7539-bd50-e7c6d169bfe7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7a23-9bab-b657364ef191" xlink:to="loc_us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue_019fdc74-410d-7539-bd50-e7c6d169bfe7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:href="tap-20260930.xsd#tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_019fdc74-410d-7863-ab22-ae67509164e0" xlink:to="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019fdc74-410d-7d39-9864-899c90defa58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue_019fdc74-410d-76eb-8abb-31f9f3cf43e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue_019fdc74-410d-76eb-8abb-31f9f3cf43e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_019fdc74-410d-7d9b-ad50-f29ef281ff3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_DerivativesNotDesignatedAsHedgingInstrumentItemListAbstract_019fdc74-410d-7570-b641-a05db07ec23b" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue_019fdc74-410d-7d9b-ad50-f29ef281ff3f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesEffectofFairValueandCashFlowHedgeAccountingDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesEffectofFairValueandCashFlowHedgeAccountingDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesEffectofFairValueandCashFlowHedgeAccountingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:to="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a3c-be29-44ec2df87a07_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a3c-be29-44ec2df87a07_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-77fe-a9c4-fbbedf5dc8cc" xlink:href="tap-20260930.xsd#tap_ForwardStartingInterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:to="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-77fe-a9c4-fbbedf5dc8cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7db0-a640-b1ff7f54e420" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7db0-a640-b1ff7f54e420" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-71a4-96ac-ba880b44c631" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:to="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-71a4-96ac-ba880b44c631" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-70ff-8180-e034d870f9e0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-70ff-8180-e034d870f9e0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7b52-b428-b7b1920640e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7b52-b428-b7b1920640e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-729b-89d7-c08e832a67a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7b52-b428-b7b1920640e4" xlink:to="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-729b-89d7-c08e832a67a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019fdc74-410d-7ecd-a6b6-ddd73468c17c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019fdc74-410d-7ecd-a6b6-ddd73468c17c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7ea9-ba72-aa26d5995630" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7ea9-ba72-aa26d5995630" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019fdc74-410d-7475-a9cc-30cd247cc7f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019fdc74-410d-7475-a9cc-30cd247cc7f2" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesEffectofFairValueandCashFlowHedgeAccountingDetails_1" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesEffectofFairValueandCashFlowHedgeAccountingDetails_1"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesEffectofFairValueandCashFlowHedgeAccountingDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:to="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a3c-be29-44ec2df87a07_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7a3c-be29-44ec2df87a07_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7a3c-be29-44ec2df87a07" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-77fe-a9c4-fbbedf5dc8cc" xlink:href="tap-20260930.xsd#tap_ForwardStartingInterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:to="loc_tap_ForwardStartingInterestRateSwapMember_019fdc74-410d-77fe-a9c4-fbbedf5dc8cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7db0-a640-b1ff7f54e420" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_019fdc74-410d-7db0-a640-b1ff7f54e420" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-71a4-96ac-ba880b44c631" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7b12-9188-392582cbe251" xlink:to="loc_us-gaap_InterestRateSwapMember_019fdc74-410d-71a4-96ac-ba880b44c631" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019fdc74-410d-72b5-a4ea-ed0f5465a5ea" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-70ff-8180-e034d870f9e0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-70ff-8180-e034d870f9e0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7b52-b428-b7b1920640e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-70ff-8180-e034d870f9e0" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7b52-b428-b7b1920640e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-729b-89d7-c08e832a67a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7b52-b428-b7b1920640e4" xlink:to="loc_us-gaap_CashFlowHedgingMember_019fdc74-410d-729b-89d7-c08e832a67a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7ea9-ba72-aa26d5995630" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-7ea9-ba72-aa26d5995630" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019fdc74-410d-7475-a9cc-30cd247cc7f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019fdc74-410d-7bc8-9fb2-e14c86c5741a" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_019fdc74-410d-7475-a9cc-30cd247cc7f2" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesCashFlowHedgesDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesCashFlowHedgesDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesCashFlowHedgesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019fdc74-410d-7a52-ae27-12410e0a8500" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-72b9-80ff-b541e8de8638" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019fdc74-410d-7a52-ae27-12410e0a8500" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-72b9-80ff-b541e8de8638" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7bfd-9163-227ce5765076" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-72b9-80ff-b541e8de8638" xlink:to="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7bfd-9163-227ce5765076" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7bfd-9163-227ce5765076_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7bfd-9163-227ce5765076" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7bfd-9163-227ce5765076_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7cd9-8d8a-4de2b66dec9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fdc74-410d-7bfd-9163-227ce5765076" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7cd9-8d8a-4de2b66dec9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EUR800Million3.8NotesDue2032Member_019fdc74-410d-7342-a106-922a346f6ffd" xlink:href="tap-20260930.xsd#tap_EUR800Million3.8NotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fdc74-410d-7cd9-8d8a-4de2b66dec9c" xlink:to="loc_tap_EUR800Million3.8NotesDue2032Member_019fdc74-410d-7342-a106-922a346f6ffd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7760-96e6-5afdd2dd0815" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-72b9-80ff-b541e8de8638" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7760-96e6-5afdd2dd0815" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7760-96e6-5afdd2dd0815_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7760-96e6-5afdd2dd0815" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-7760-96e6-5afdd2dd0815_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-76cd-a4a0-0f08545a0521" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fdc74-410d-7760-96e6-5afdd2dd0815" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-76cd-a4a0-0f08545a0521" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019fdc74-410d-7491-8e87-272b5a5daee2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019fdc74-410d-76cd-a4a0-0f08545a0521" xlink:to="loc_us-gaap_SeniorNotesMember_019fdc74-410d-7491-8e87-272b5a5daee2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-731f-86b8-57ec31ad4dd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-72b9-80ff-b541e8de8638" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-731f-86b8-57ec31ad4dd1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-731f-86b8-57ec31ad4dd1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-731f-86b8-57ec31ad4dd1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-731f-86b8-57ec31ad4dd1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7642-ac36-fc2caa73f413" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019fdc74-410d-731f-86b8-57ec31ad4dd1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7642-ac36-fc2caa73f413" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_019fdc74-410d-7481-a89b-983447eb8b2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019fdc74-410d-7642-ac36-fc2caa73f413" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_019fdc74-410d-7481-a89b-983447eb8b2b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019fdc74-410d-7c89-a75c-4569f4a11387" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019fdc74-410d-7a52-ae27-12410e0a8500" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019fdc74-410d-7c89-a75c-4569f4a11387" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019fdc74-410d-730a-a2b0-f27f38c60368" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019fdc74-410d-7a52-ae27-12410e0a8500" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019fdc74-410d-730a-a2b0-f27f38c60368" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-733e-bf13-2c606dd7337a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_019fdc74-410d-7a52-ae27-12410e0a8500" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationAndTax_019fdc74-410d-733e-bf13-2c606dd7337a" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesOtherDerivativesDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesOtherDerivativesDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesOtherDerivativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_tap_GainLossOnDerivativeInstrumentsLineItems_019fdc74-410d-7432-9e6f-6ff65c325616" xlink:href="tap-20260930.xsd#tap_GainLossOnDerivativeInstrumentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_tap_GainLossOnDerivativeInstrumentsLineItems_019fdc74-410d-7432-9e6f-6ff65c325616" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:to="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-720d-97e0-481eb05776d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-720d-97e0-481eb05776d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7fc4-8b47-664557cc2fef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7fc4-8b47-664557cc2fef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ef9-9750-6fa7c0f3f47c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7fc4-8b47-664557cc2fef" xlink:to="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ef9-9750-6fa7c0f3f47c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7cad-8cf5-5fb43d8cf40b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7cad-8cf5-5fb43d8cf40b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityContractMember_019fdc74-410d-73c9-813e-93720971f650" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:to="loc_us-gaap_CommodityContractMember_019fdc74-410d-73c9-813e-93720971f650" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7440-95f9-c35b8db30d85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:to="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7440-95f9-c35b8db30d85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019fdc74-410d-783b-967c-a0f1a9161cff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019fdc74-410d-783b-967c-a0f1a9161cff" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_019fdc74-410d-7a2d-9230-ee3db8cde034" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_GainLossOnDerivativeInstrumentsLineItems_019fdc74-410d-7432-9e6f-6ff65c325616" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_019fdc74-410d-7a2d-9230-ee3db8cde034" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesOtherDerivativesDetails_1" xlink:type="simple" xlink:href="tap-20260930.xsd#DerivativeInstrumentsandHedgingActivitiesOtherDerivativesDetails_1"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/DerivativeInstrumentsandHedgingActivitiesOtherDerivativesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_tap_GainLossOnDerivativeInstrumentsLineItems_019fdc74-410d-7432-9e6f-6ff65c325616" xlink:href="tap-20260930.xsd#tap_GainLossOnDerivativeInstrumentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_tap_GainLossOnDerivativeInstrumentsLineItems_019fdc74-410d-7432-9e6f-6ff65c325616" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:to="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-720d-97e0-481eb05776d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-720d-97e0-481eb05776d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7fc4-8b47-664557cc2fef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_019fdc74-410d-720d-97e0-481eb05776d5" xlink:to="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7fc4-8b47-664557cc2fef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ef9-9750-6fa7c0f3f47c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_019fdc74-410d-7fc4-8b47-664557cc2fef" xlink:to="loc_us-gaap_NondesignatedMember_019fdc74-410d-7ef9-9750-6fa7c0f3f47c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_019fdc74-410d-7f70-a092-b0de4c37ddf4" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7cad-8cf5-5fb43d8cf40b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-7cad-8cf5-5fb43d8cf40b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019fdc74-410d-7cad-8cf5-5fb43d8cf40b" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityContractMember_019fdc74-410d-73c9-813e-93720971f650" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:to="loc_us-gaap_CommodityContractMember_019fdc74-410d-73c9-813e-93720971f650" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7440-95f9-c35b8db30d85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommodityOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019fdc74-410d-77a6-a921-6dfc54e5e55e" xlink:to="loc_us-gaap_CommodityOptionMember_019fdc74-410d-7440-95f9-c35b8db30d85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_019fdc74-410d-7a2d-9230-ee3db8cde034" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_tap_GainLossOnDerivativeInstrumentsLineItems_019fdc74-410d-7432-9e6f-6ff65c325616" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_019fdc74-410d-7a2d-9230-ee3db8cde034" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#AccumulatedOtherComprehensiveIncomeLossDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019fdc74-410d-7c7a-9c94-8ab135a10941" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019fdc74-410d-72b9-8ee7-208e626e438b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019fdc74-410d-7c7a-9c94-8ab135a10941" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019fdc74-410d-72b9-8ee7-208e626e438b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-410d-7519-8c02-754c253a99e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019fdc74-410d-72b9-8ee7-208e626e438b" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-410d-7519-8c02-754c253a99e5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7519-8c02-754c253a99e5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-410d-7519-8c02-754c253a99e5" xlink:to="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7519-8c02-754c253a99e5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019fdc74-410d-7519-8c02-754c253a99e5" xlink:to="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019fdc74-410d-7c84-99c9-3237df4fc50f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019fdc74-410d-7c84-99c9-3237df4fc50f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AccumulatedForeignCurrencyAdjustmentExcludingNetInvestmentHedgingAttributableToParentMember_019fdc74-410d-7217-884e-9ad7e6c7b3b4" xlink:href="tap-20260930.xsd#tap_AccumulatedForeignCurrencyAdjustmentExcludingNetInvestmentHedgingAttributableToParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019fdc74-410d-7c84-99c9-3237df4fc50f" xlink:to="loc_tap_AccumulatedForeignCurrencyAdjustmentExcludingNetInvestmentHedgingAttributableToParentMember_019fdc74-410d-7217-884e-9ad7e6c7b3b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AccumulatedForeignCurrencyAdjustmentNetInvestmentHedgingAttributableToParentMember_019fdc74-410d-7cb9-99b0-1441727cf57d" xlink:href="tap-20260930.xsd#tap_AccumulatedForeignCurrencyAdjustmentNetInvestmentHedgingAttributableToParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019fdc74-410d-7c84-99c9-3237df4fc50f" xlink:to="loc_tap_AccumulatedForeignCurrencyAdjustmentNetInvestmentHedgingAttributableToParentMember_019fdc74-410d-7cb9-99b0-1441727cf57d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AOCIForeignCurrencyTranslationAdjustmentsToParentMember_019fdc74-410d-7d31-a8d4-589cfc6dbfcf" xlink:href="tap-20260930.xsd#tap_AOCIForeignCurrencyTranslationAdjustmentsToParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:to="loc_tap_AOCIForeignCurrencyTranslationAdjustmentsToParentMember_019fdc74-410d-7d31-a8d4-589cfc6dbfcf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_019fdc74-410d-70ec-911a-c52f34c5248f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_019fdc74-410d-70ec-911a-c52f34c5248f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_019fdc74-410d-7032-9dd3-95bb28cb7cd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_019fdc74-410d-7032-9dd3-95bb28cb7cd1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AccumulatedEquityMethodInvestmentAdjustmentAttributableToParentMember_019fdc74-410d-7396-9d26-60fbfe8d6841" xlink:href="tap-20260930.xsd#tap_AccumulatedEquityMethodInvestmentAdjustmentAttributableToParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:to="loc_tap_AccumulatedEquityMethodInvestmentAdjustmentAttributableToParentMember_019fdc74-410d-7396-9d26-60fbfe8d6841" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019fdc74-410d-7f06-947c-19a291c7019e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019fdc74-410d-7d00-a5d6-99270d78ae58" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019fdc74-410d-7f06-947c-19a291c7019e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019fdc74-410d-78f2-b3da-c7759b13edff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019fdc74-410d-7c7a-9c94-8ab135a10941" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019fdc74-410d-78f2-b3da-c7759b13edff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-410d-761c-87d9-04815d2e6b36" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019fdc74-410d-78f2-b3da-c7759b13edff" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-410d-761c-87d9-04815d2e6b36" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_019fdc74-410d-71cd-955a-293c2e64bbac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019fdc74-410d-78f2-b3da-c7759b13edff" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_019fdc74-410d-71cd-955a-293c2e64bbac" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_019fdc74-410d-7ca3-a426-7161343ffd15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019fdc74-410d-78f2-b3da-c7759b13edff" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_019fdc74-410d-7ca3-a426-7161343ffd15" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTax_019fdc74-410d-7b28-9748-e5572e186151" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_019fdc74-410d-78f2-b3da-c7759b13edff" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTax_019fdc74-410d-7b28-9748-e5572e186151" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019fdc74-410d-7280-a8e2-a4dbf0199c64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/OtherOperatingIncomeExpensenetScheduleofOtherOperatingIncomeExpenseNetDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#OtherOperatingIncomeExpensenetScheduleofOtherOperatingIncomeExpenseNetDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/OtherOperatingIncomeExpensenetScheduleofOtherOperatingIncomeExpenseNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualOrInfrequentItemTable_019fdc74-410d-79fa-bd01-7cf817dbbbba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnusualOrInfrequentItemTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_UnusualOrInfrequentItemTable_019fdc74-410d-79fa-bd01-7cf817dbbbba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualOrInfrequentItemAxis_019fdc74-410d-7924-899f-6480c882b97d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnusualOrInfrequentItemAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_UnusualOrInfrequentItemTable_019fdc74-410d-79fa-bd01-7cf817dbbbba" xlink:to="loc_us-gaap_UnusualOrInfrequentItemAxis_019fdc74-410d-7924-899f-6480c882b97d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-7924-899f-6480c882b97d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnusualOrInfrequentItemDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_UnusualOrInfrequentItemAxis_019fdc74-410d-7924-899f-6480c882b97d" xlink:to="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-7924-899f-6480c882b97d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-749f-94e3-68915e8ead58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnusualOrInfrequentItemDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_UnusualOrInfrequentItemAxis_019fdc74-410d-7924-899f-6480c882b97d" xlink:to="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-749f-94e3-68915e8ead58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_OtherEmployeeRelatedCostsMember_019fdc74-410d-7a58-94e8-21b0a0a9e722" xlink:href="tap-20260930.xsd#tap_OtherEmployeeRelatedCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-749f-94e3-68915e8ead58" xlink:to="loc_tap_OtherEmployeeRelatedCostsMember_019fdc74-410d-7a58-94e8-21b0a0a9e722" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AssetAbandonmentAndOtherMember_019fdc74-410d-7e44-b44e-59dce9e325b7" xlink:href="tap-20260930.xsd#tap_AssetAbandonmentAndOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-749f-94e3-68915e8ead58" xlink:to="loc_tap_AssetAbandonmentAndOtherMember_019fdc74-410d-7e44-b44e-59dce9e325b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_ImpairmentLossesMember_01a0583f-20e0-78a3-ab1f-1edac9c2aef7" xlink:href="tap-20260930.xsd#tap_ImpairmentLossesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-749f-94e3-68915e8ead58" xlink:to="loc_tap_ImpairmentLossesMember_01a0583f-20e0-78a3-ab1f-1edac9c2aef7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_GainsAndLossesOnOtherDisposalsMember_019fdc74-410d-7748-9477-6d94875ef297" xlink:href="tap-20260930.xsd#tap_GainsAndLossesOnOtherDisposalsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnusualOrInfrequentItemDomain_019fdc74-410d-749f-94e3-68915e8ead58" xlink:to="loc_tap_GainsAndLossesOnOtherDisposalsMember_019fdc74-410d-7748-9477-6d94875ef297" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7d2e-9286-9702559215ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_UnusualOrInfrequentItemTable_019fdc74-410d-79fa-bd01-7cf817dbbbba" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7d2e-9286-9702559215ad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-7d2e-9286-9702559215ad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7d2e-9286-9702559215ad" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-7d2e-9286-9702559215ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-78d0-b4ee-87f3aefe8269" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7d2e-9286-9702559215ad" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-78d0-b4ee-87f3aefe8269" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasSegmentMember_019fdc74-410d-792b-a789-223265eb6af0" xlink:href="tap-20260930.xsd#tap_AmericasSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019fdc74-410d-78d0-b4ee-87f3aefe8269" xlink:to="loc_tap_AmericasSegmentMember_019fdc74-410d-792b-a789-223265eb6af0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EMEAAPACMember_019fdc74-410d-7a38-b14d-3f881998dc8b" xlink:href="tap-20260930.xsd#tap_EMEAAPACMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019fdc74-410d-78d0-b4ee-87f3aefe8269" xlink:to="loc_tap_EMEAAPACMember_019fdc74-410d-7a38-b14d-3f881998dc8b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019fdc74-410d-7c1f-8fe4-55f4e687c6e2" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_UnusualOrInfrequentItemTable_019fdc74-410d-79fa-bd01-7cf817dbbbba" xlink:to="loc_srt_RangeAxis_019fdc74-410d-7c1f-8fe4-55f4e687c6e2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019fdc74-410d-7c1f-8fe4-55f4e687c6e2_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019fdc74-410d-7c1f-8fe4-55f4e687c6e2" xlink:to="loc_srt_RangeMember_019fdc74-410d-7c1f-8fe4-55f4e687c6e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019fdc74-410d-765d-bcd9-32d37b22847a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019fdc74-410d-7c1f-8fe4-55f4e687c6e2" xlink:to="loc_srt_RangeMember_019fdc74-410d-765d-bcd9-32d37b22847a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019fdc74-410d-7eb6-a400-98bc783974ee" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019fdc74-410d-765d-bcd9-32d37b22847a" xlink:to="loc_srt_MinimumMember_019fdc74-410d-7eb6-a400-98bc783974ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019fdc74-410d-7217-bbb4-71968b2d924d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019fdc74-410d-765d-bcd9-32d37b22847a" xlink:to="loc_srt_MaximumMember_019fdc74-410d-7217-bbb4-71968b2d924d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7e59-934b-632831742abb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_UnusualOrInfrequentItemTable_019fdc74-410d-79fa-bd01-7cf817dbbbba" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7e59-934b-632831742abb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-7e59-934b-632831742abb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7e59-934b-632831742abb" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-7e59-934b-632831742abb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-74e1-8eca-e9e943cf8f3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7e59-934b-632831742abb" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-74e1-8eca-e9e943cf8f3f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_OtherEmployeeRelatedCostsMember_019fdc74-410d-71c7-b623-5655d3ecbbe4" xlink:href="tap-20260930.xsd#tap_OtherEmployeeRelatedCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-74e1-8eca-e9e943cf8f3f" xlink:to="loc_tap_OtherEmployeeRelatedCostsMember_019fdc74-410d-71c7-b623-5655d3ecbbe4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_WindDownAndSaleOfCertainU.S.CraftBusinessesMember_019fdc74-410d-7267-b182-d5ece7294d44" xlink:href="tap-20260930.xsd#tap_WindDownAndSaleOfCertainU.S.CraftBusinessesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-74e1-8eca-e9e943cf8f3f" xlink:to="loc_tap_WindDownAndSaleOfCertainU.S.CraftBusinessesMember_019fdc74-410d-7267-b182-d5ece7294d44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitAxis_01a0b064-e0b0-7cf2-8b4c-9063fb2ff3e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_UnusualOrInfrequentItemTable_019fdc74-410d-79fa-bd01-7cf817dbbbba" xlink:to="loc_us-gaap_ReportingUnitAxis_01a0b064-e0b0-7cf2-8b4c-9063fb2ff3e2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_01a0b064-e0b0-7cf2-8b4c-9063fb2ff3e2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReportingUnitAxis_01a0b064-e0b0-7cf2-8b4c-9063fb2ff3e2" xlink:to="loc_us-gaap_ReportingUnitDomain_01a0b064-e0b0-7cf2-8b4c-9063fb2ff3e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitDomain_01a0b064-e0b0-76cc-a29f-dae7c88ff967" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReportingUnitDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReportingUnitAxis_01a0b064-e0b0-7cf2-8b4c-9063fb2ff3e2" xlink:to="loc_us-gaap_ReportingUnitDomain_01a0b064-e0b0-76cc-a29f-dae7c88ff967" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EMEAAPACMember_01a0b065-025d-767b-8910-944033175276" xlink:href="tap-20260930.xsd#tap_EMEAAPACMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_01a0b064-e0b0-76cc-a29f-dae7c88ff967" xlink:to="loc_tap_EMEAAPACMember_01a0b065-025d-767b-8910-944033175276" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasSegmentMember_01a0b065-f8fd-7a3c-9a6f-3d1bd89437e1" xlink:href="tap-20260930.xsd#tap_AmericasSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReportingUnitDomain_01a0b064-e0b0-76cc-a29f-dae7c88ff967" xlink:to="loc_tap_AmericasSegmentMember_01a0b065-f8fd-7a3c-9a6f-3d1bd89437e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_019fdc74-410d-79b3-b77c-537ce110c71a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_019fdc74-410d-79b3-b77c-537ce110c71a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019fdc74-410d-76ee-9d67-9fb4570831b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_RestructuringCharges_019fdc74-410d-76ee-9d67-9fb4570831b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_019fdc74-410d-76b5-9df0-20f574dc7781" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringAndRelatedCostCostIncurredToDate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_019fdc74-410d-76b5-9df0-20f574dc7781" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveAcceleratedDepreciation_019fdc74-410d-7000-ba84-bc5715a7e750" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringReserveAcceleratedDepreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_RestructuringReserveAcceleratedDepreciation_019fdc74-410d-7000-ba84-bc5715a7e750" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_019fdc74-410d-7848-b7c5-ea5d328747b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_019fdc74-410d-7848-b7c5-ea5d328747b0" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_RestructuringAndRelatedCostAcceleratedAmortization_019fdc74-410d-741a-93cb-6fa45797ca6e" xlink:href="tap-20260930.xsd#tap_RestructuringAndRelatedCostAcceleratedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_tap_RestructuringAndRelatedCostAcceleratedAmortization_019fdc74-410d-741a-93cb-6fa45797ca6e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_01a0b064-e0b0-75a3-a86f-70628d3fc2b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_01a0b064-e0b0-75a3-a86f-70628d3fc2b1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_01a0b065-c686-70ea-8bae-edf5e4744c2d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-7584-88dd-c2186e0829ee" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_01a0b065-c686-70ea-8bae-edf5e4744c2d" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/OtherOperatingIncomeExpensenetScheduleofRestructuringAccrualsDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#OtherOperatingIncomeExpensenetScheduleofRestructuringAccrualsDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/OtherOperatingIncomeExpensenetScheduleofRestructuringAccrualsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-73db-8ea1-94392dcd1a60" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019fdc74-410d-73fb-a098-c88716ca8f0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-73db-8ea1-94392dcd1a60" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019fdc74-410d-73fb-a098-c88716ca8f0c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7de9-8c03-77dea5fb0885" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019fdc74-410d-73fb-a098-c88716ca8f0c" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7de9-8c03-77dea5fb0885" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-7de9-8c03-77dea5fb0885_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7de9-8c03-77dea5fb0885" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-7de9-8c03-77dea5fb0885_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-7c35-8104-fa24da9c19d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7de9-8c03-77dea5fb0885" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-7c35-8104-fa24da9c19d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasSegmentMember_019fdc74-410d-7635-8af1-5b2d4d4983f5" xlink:href="tap-20260930.xsd#tap_AmericasSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019fdc74-410d-7c35-8104-fa24da9c19d1" xlink:to="loc_tap_AmericasSegmentMember_019fdc74-410d-7635-8af1-5b2d4d4983f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7c4b-a169-932db981b04b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019fdc74-410d-73fb-a098-c88716ca8f0c" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7c4b-a169-932db981b04b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-7c4b-a169-932db981b04b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7c4b-a169-932db981b04b" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-7c4b-a169-932db981b04b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-7fc6-a04d-c285b52be963" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_019fdc74-410d-7c4b-a169-932db981b04b" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-7fc6-a04d-c285b52be963" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeSeveranceMember_019fdc74-410d-76f0-b295-ed20ec700199" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeSeveranceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019fdc74-410d-7fc6-a04d-c285b52be963" xlink:to="loc_us-gaap_EmployeeSeveranceMember_019fdc74-410d-76f0-b295-ed20ec700199" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveRollForward_019fdc74-410d-7636-ae7b-cd87717048c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringReserveRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019fdc74-410d-73db-8ea1-94392dcd1a60" xlink:to="loc_us-gaap_RestructuringReserveRollForward_019fdc74-410d-7636-ae7b-cd87717048c7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_019fdc74-410d-78ba-9852-096391e934d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringReserve"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_019fdc74-410d-7636-ae7b-cd87717048c7" xlink:to="loc_us-gaap_RestructuringReserve_019fdc74-410d-78ba-9852-096391e934d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019fdc74-410d-7e7d-b301-0e947a941b6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_019fdc74-410d-7636-ae7b-cd87717048c7" xlink:to="loc_us-gaap_RestructuringCharges_019fdc74-410d-7e7d-b301-0e947a941b6f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_019fdc74-410d-74b3-8fd5-c070787f20b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_019fdc74-410d-7636-ae7b-cd87717048c7" xlink:to="loc_us-gaap_PaymentsForRestructuring_019fdc74-410d-74b3-8fd5-c070787f20b6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_019fdc74-410d-725a-a70a-978f51b58777" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestructuringReserve"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/SegmentReportingScheduleofIncomeLossBeforeIncomeTaxesbySegmentDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#SegmentReportingScheduleofIncomeLossBeforeIncomeTaxesbySegmentDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/SegmentReportingScheduleofIncomeLossBeforeIncomeTaxesbySegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019fdc74-410d-7377-a417-6a0706af09ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019fdc74-410d-7377-a417-6a0706af09ca" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7bf5-b5ff-384dcfbd4989" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019fdc74-410d-7377-a417-6a0706af09ca" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7bf5-b5ff-384dcfbd4989" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-7bf5-b5ff-384dcfbd4989_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7bf5-b5ff-384dcfbd4989" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-7bf5-b5ff-384dcfbd4989_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-7bf9-9026-f49a4f3263a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7bf5-b5ff-384dcfbd4989" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-7bf9-9026-f49a4f3263a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasSegmentMember_019fdc74-410d-783d-ab1e-8dbe29a23455" xlink:href="tap-20260930.xsd#tap_AmericasSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019fdc74-410d-7bf9-9026-f49a4f3263a3" xlink:to="loc_tap_AmericasSegmentMember_019fdc74-410d-783d-ab1e-8dbe29a23455" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember_019fdc74-410d-79fd-a395-e4da8da8930c" xlink:href="tap-20260930.xsd#tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019fdc74-410d-7bf9-9026-f49a4f3263a3" xlink:to="loc_tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember_019fdc74-410d-79fd-a395-e4da8da8930c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019fdc74-410d-79db-9e03-cc81381534b1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019fdc74-410d-7377-a417-6a0706af09ca" xlink:to="loc_srt_ConsolidationItemsAxis_019fdc74-410d-79db-9e03-cc81381534b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019fdc74-410d-79db-9e03-cc81381534b1_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_019fdc74-410d-79db-9e03-cc81381534b1" xlink:to="loc_srt_ConsolidationItemsDomain_019fdc74-410d-79db-9e03-cc81381534b1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019fdc74-410d-7cb8-b161-741218de849e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_019fdc74-410d-79db-9e03-cc81381534b1" xlink:to="loc_srt_ConsolidationItemsDomain_019fdc74-410d-7cb8-b161-741218de849e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019fdc74-410d-7f49-838b-38f0e835549c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019fdc74-410d-7cb8-b161-741218de849e" xlink:to="loc_us-gaap_OperatingSegmentsMember_019fdc74-410d-7f49-838b-38f0e835549c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_019fdc74-410d-7572-8229-a073c86ca3bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019fdc74-410d-7cb8-b161-741218de849e" xlink:to="loc_us-gaap_CorporateNonSegmentMember_019fdc74-410d-7572-8229-a073c86ca3bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntersegmentEliminationMember_019fdc74-410d-76a9-8eb3-0c7252f816dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntersegmentEliminationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019fdc74-410d-7cb8-b161-741218de849e" xlink:to="loc_us-gaap_IntersegmentEliminationMember_019fdc74-410d-76a9-8eb3-0c7252f816dc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_019fdc74-410d-7c22-9622-37bba36b4f98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_019fdc74-410d-7c22-9622-37bba36b4f98" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019fdc74-410d-7dc7-b50c-a32845d215bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019fdc74-410d-7dc7-b50c-a32845d215bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_019fdc74-410d-7598-abb2-3772970d8cd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_SellingAndMarketingExpense_019fdc74-410d-7598-abb2-3772970d8cd1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_GeneralAndAdministrativeExpenseAdjusted_019fdc74-410d-7bba-977a-1064a9f97911" xlink:href="tap-20260930.xsd#tap_GeneralAndAdministrativeExpenseAdjusted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_tap_GeneralAndAdministrativeExpenseAdjusted_019fdc74-410d-7bba-977a-1064a9f97911" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_01a05845-5191-7044-9ad9-024e757d42a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_01a05845-5191-7044-9ad9-024e757d42a6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_019fdc74-410d-77f8-a9aa-b6eb16517a74" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_019fdc74-410d-77f8-a9aa-b6eb16517a74" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019fdc74-410d-7965-bbff-435a0f1eade7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_019fdc74-410d-7965-bbff-435a0f1eade7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019fdc74-410d-77d8-9e3f-d42f11b593d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019fdc74-410d-77d8-9e3f-d42f11b593d3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019fdc74-410d-7ded-869e-8fd15bcc2426" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019fdc74-410d-7ded-869e-8fd15bcc2426" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019fdc74-410d-776a-95d3-32225b701ffc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_019fdc74-410d-776a-95d3-32225b701ffc" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019fdc74-410d-7681-901f-61ff09f3ef08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019fdc74-410d-7681-901f-61ff09f3ef08" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019fdc74-410d-72c2-a1fa-f2c0a2818081" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019fdc74-410d-72c2-a1fa-f2c0a2818081" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_019fdc74-410d-7479-a725-1d8acd104945" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_019fdc74-410d-7479-a725-1d8acd104945" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019fdc74-410d-788a-b28c-24d0e629554b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019fdc74-410d-788a-b28c-24d0e629554b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019fdc74-410d-7de1-8b26-0238d671e51e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-71e0-b0fe-82dba60c51b1" xlink:to="loc_us-gaap_NetIncomeLoss_019fdc74-410d-7de1-8b26-0238d671e51e" xlink:type="arc" order="14"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.coors.com/role/SegmentReportingScheduleofCashFlowsInformationbySegmentDetails" xlink:type="simple" xlink:href="tap-20260930.xsd#SegmentReportingScheduleofCashFlowsInformationbySegmentDetails"/>
  <link:definitionLink xlink:role="http://www.coors.com/role/SegmentReportingScheduleofCashFlowsInformationbySegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-7295-9e9e-fab7f128da42" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019fdc74-410d-7e55-a8ac-cb59b13d0099" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-7295-9e9e-fab7f128da42" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019fdc74-410d-7e55-a8ac-cb59b13d0099" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7ee0-8625-725ca46a23f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019fdc74-410d-7e55-a8ac-cb59b13d0099" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7ee0-8625-725ca46a23f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-7ee0-8625-725ca46a23f9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7ee0-8625-725ca46a23f9" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-7ee0-8625-725ca46a23f9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019fdc74-410d-709d-8e2e-0354c3f628c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019fdc74-410d-7ee0-8625-725ca46a23f9" xlink:to="loc_us-gaap_SegmentDomain_019fdc74-410d-709d-8e2e-0354c3f628c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_AmericasSegmentMember_019fdc74-410d-7e30-8d94-bd7f6296417b" xlink:href="tap-20260930.xsd#tap_AmericasSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019fdc74-410d-709d-8e2e-0354c3f628c8" xlink:to="loc_tap_AmericasSegmentMember_019fdc74-410d-7e30-8d94-bd7f6296417b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember_019fdc74-410d-728c-b4fc-7e8325e4af60" xlink:href="tap-20260930.xsd#tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019fdc74-410d-709d-8e2e-0354c3f628c8" xlink:to="loc_tap_EuropeMiddleEastAfricaAndAsiaPacificSegmentMember_019fdc74-410d-728c-b4fc-7e8325e4af60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019fdc74-410d-78c6-94dc-eb8726e47098" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-7295-9e9e-fab7f128da42" xlink:to="loc_us-gaap_Assets_019fdc74-410d-78c6-94dc-eb8726e47098" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019fdc74-410d-787f-86ef-e8bf188e60f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-7295-9e9e-fab7f128da42" xlink:to="loc_us-gaap_DepreciationAndAmortization_019fdc74-410d-787f-86ef-e8bf188e60f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentExpenditureAdditionToLongLivedAssets_019fdc74-410d-7c09-94ce-0847111ff7f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentExpenditureAdditionToLongLivedAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019fdc74-410d-7295-9e9e-fab7f128da42" xlink:to="loc_us-gaap_SegmentExpenditureAdditionToLongLivedAssets_019fdc74-410d-7c09-94ce-0847111ff7f7" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-roles-2026.xsd#eedm1"/>
  <link:definitionLink xlink:role="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_OtherAssetsNoncurrent" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:type="arc" order="102"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent" xlink:type="arc" order="41"/>
  </link:definitionLink>
</link:linkbase>
