<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-02-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001584509</issuerCik>
        <issuerName>Aramark</issuerName>
        <issuerTradingSymbol>ARMK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001260937</rptOwnerCik>
            <rptOwnerName>ABBRECHT TODD M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMAS H. LEE PARTNERS, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>100 FEDERAL STREET, 35TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02110</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2016-02-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4926</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15267.7293</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Securities issued represent deferred stock units granted by the Issuer in connection with the Reporting Person's services as a director, which will vest on the day prior to the first annual stockholders' meeting of the Company occurring after the grant date, subject to continued service, and, if vested, will be settled in shares of common stock on the first day of the seventh month after the date of the director's departure from the board.</footnote>
        <footnote id="F2">The Reporting Person owns 4,983.3139 deferred stock units (including dividend equivalent rights) included in this amount and the remaining 10,284.4154 deferred stock units (including dividend equivalent rights) are held for the benefit of the THL Funds because, pursuant to the operative agreements for Thomas H. Lee Equity Fund VI, L.P. (&quot;THL Equity VI&quot;), Thomas H. Lee Parallel Fund VI, L.P. (&quot;Parallel Fund VI&quot;), Thomas H. Lee Parallel (DT) Fund VI, L.P. (&quot;DT Fund VI&quot;; together with THL Equity VI and Parallel Fund VI, &quot;THL Funds&quot;), any securities issued to persons serving as directors of portfolio companies of the THL Funds, such as the Issuer, are to be held for the benefit of the THL Funds.  The Reporting Person disclaims beneficial ownership of such securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for the purpose of Section 16 or for any other purpose, except to the extent of his pecuniary interest there</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Todd M. Abbrecht</signatureName>
        <signatureDate>2016-02-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
