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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-11-04</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001530721</issuerCik>
        <issuerName>Michael Kors Holdings Ltd</issuerName>
        <issuerTradingSymbol>KORS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001688854</rptOwnerCik>
            <rptOwnerName>Freestone Robin Anthony David</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>33 KINGSWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>WC2B 6UF</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted share units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2016-11-04</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2292</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary shares, no par value</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2292</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2292</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Granted pursuant to the Michael Kors Holdings Limited Amended and Restated Omnibus Incentive Plan. The restricted share units (&quot;RSUs&quot;) vest on the earliest of: (1) the one year anniversary of the date of grant, or (2) the Company's annual shareholder meeting that occurs in the calendar year following the date of grant, and will be settled upon vesting unless the reporting person elects to defer settlement to a later date. If the reporting person's service with the Company terminates prior to the vesting date, the RSUs will vest pro-rata based on the number of days from the date of grant through and including the date of the reporting person's termination of service. The RSUs will also vest in full in the event of the reporting person's death or disability.</footnote>
        <footnote id="F2">The RSUs do not expire.</footnote>
        <footnote id="F3">Settlement of this award will be satisfied through the issuance of one ordinary share for each vested RSU.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Krista A. McDonough, as Attorney-in-Fact for Robin Freestone</signatureName>
        <signatureDate>2016-11-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
