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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-08-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001572713</rptOwnerCik>
            <rptOwnerName>Tomlin Jean</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MICHAEL KORS LTD, UNIT 1902, 19/F</rptOwnerStreet1>
            <rptOwnerStreet2>TOWER 6, THE GATEWAY, HARBOUR CITY</rptOwnerStreet2>
            <rptOwnerCity>TSIM SHA TSI, KOWLOON</rptOwnerCity>
            <rptOwnerState>K3</rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription>HONG KONG</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>2013-08-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2185</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2014-08-01</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary shares, no par value</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2185</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2185</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeHolding>
            <securityTitle>
                <value>Restricted share units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2014-03-18</value>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary shares, no par value</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>993</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>993</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Granted on August 1, 2013 pursuant to the Michael Kors Holdings Limited Omnibus Incentive Plan (the &quot;Incentive Plan&quot;). Subject to the director's continued service, this award will vest and settle in full on the first anniversary of the date of grant (August 1, 2014).</footnote>
        <footnote id="F2">The restricted share units do not expire.</footnote>
        <footnote id="F3">Settlement of this award may be satisfied through the issuance of one ordinary share or cash equal to the fair market value of one ordinary share for each vested restricted share unit (as determined by the Compensation Committee of the Company in its sole discretion).</footnote>
        <footnote id="F4">Granted on March 18, 2013 pursuant to the Incentive Plan. Subject to the director's continued service, this award will vest and settle in full on the first anniversary of the date of grant (March 18, 2014).</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Krista A. McDonough, as Attorney-in-Fact for Jean Tomlin</signatureName>
        <signatureDate>2013-08-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
