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    <periodOfReport>2025-12-15</periodOfReport>

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    <issuer>
        <issuerCik>0001618756</issuerCik>
        <issuerName>Restaurant Brands International Inc.</issuerName>
        <issuerTradingSymbol>QSR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001908101</rptOwnerCik>
            <rptOwnerName>Housman Jeffrey</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RESTAURANT BRANDS INTERNATIONAL INC.</rptOwnerStreet1>
            <rptOwnerStreet2>5707 BLUE LAGOON DRIVE</rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33126</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>See Remarks</officerTitle>
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    <footnotes>
        <footnote id="F1">Represents shares sold to cover withholding tax obligations on the settlement of the reported vesting of the Reporting Person's restricted share units.</footnote>
        <footnote id="F2">Represents shares sold to cover tax equalization gross-ups due to the Company by the Reporting Person.</footnote>
        <footnote id="F3">Each Restaurant Brands International Limited Partnership exchangeable unit is convertible, at the Reporting Person's election, into common shares of Restaurant Brands International Inc. or a cash amount equal to a prescribed cash amount determined by reference to the weighted average trading price of Restaurant Brands International Inc.'s common shares on the New York Stock Exchange for the 20 consecutive trading days ending on the last business day prior to the exchange date, at the sole discretion of the general partner of Restaurant Brands International Limited Partnership (subject to the consent of the Restaurant Brands International Inc. conflicts committee, in certain circumstances). This conversion right has no expiration date.</footnote>
        <footnote id="F4">These options are fully vested and exercisable.</footnote>
        <footnote id="F5">Each restricted share unit represents a contingent right to receive one common share.</footnote>
        <footnote id="F6">These restricted share units vest in equal annual installments. The remaining vesting will occur on December 31, 2025.</footnote>
        <footnote id="F7">These restricted share units vest in equal annual installments. The remaining vesting will occur on December 15, 2026.</footnote>
        <footnote id="F8">The shares reported represent an award of performance based restricted share units (&quot;2023 PBRSUs&quot;) granted to the Reporting Person. The 2023 PBRSUs will have a performance period beginning January 1, 2023 and ending December 31, 2025 and to the extent earned will vest on February 22, 2026. The number of common shares that will be earned at the end of the performance period is subject to increase or decrease based on the results of the performance condition.</footnote>
        <footnote id="F9">These restricted share units vest in equal annual installments. The remaining vestings will occur on December 15, 2026 and December 15, 2027.</footnote>
        <footnote id="F10">The shares reported represent an award of performance based restricted share units (&quot;2024 PBRSUs&quot;) granted to the Reporting Person. The 2024 PBRSUs will have a performance period beginning February 23, 2024 and ending February 23, 2027 and to the extent earned will vest on March 15, 2027. The number of common shares that will be earned at the end of the performance period is subject to increase or decrease based on the results of the performance condition.</footnote>
        <footnote id="F11">These restricted share units vest in equal annual installments. The remaining vestings will occur on December 15, 2026, December 15, 2027 and December 15, 2028.</footnote>
        <footnote id="F12">The shares reported represent an award of performance based restricted share units (&quot;2025 PBRSUs&quot;) granted to the Reporting Person. The 2025 PBRSUs will have a performance period beginning February 28, 2025 and ending February 28, 2028 and to the extent earned will vest on March 15, 2028. The number of common shares that will be earned at the end of the performance period is subject to increase or decrease based on the results of the performance condition.</footnote>
    </footnotes>

    <remarks>Chief People &amp; Services Officer</remarks>

    <ownerSignature>
        <signatureName>/s/ Jill Granat, as Attorney-in-Fact for Jeffrey Housman</signatureName>
        <signatureDate>2025-12-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
