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

    <schemaVersion>X0508</schemaVersion>

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    <periodOfReport>2026-01-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001070235</issuerCik>
        <issuerName>BLACKBERRY Ltd</issuerName>
        <issuerTradingSymbol>BB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001234080</rptOwnerCik>
            <rptOwnerName>GIAMATTEO JOHN JOSEPH</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BLACKBERRY LIMITED</rptOwnerStreet1>
            <rptOwnerStreet2>2200 UNIVERSITY AVENUE EAST</rptOwnerStreet2>
            <rptOwnerCity>WATERLOO</rptOwnerCity>
            <rptOwnerState>A6</rptOwnerState>
            <rptOwnerZipCode>N2K 0A7</rptOwnerZipCode>
            <rptOwnerStateDescription>ONTARIO, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO &amp; President, Cybersecurity</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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            </securityTitle>
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            </transactionDate>
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                <transactionCode>M</transactionCode>
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                    <value>72886</value>
                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
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            </ownershipNature>
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            </securityTitle>
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                </transactionShares>
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                </transactionPricePerShare>
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                </sharesOwnedFollowingTransaction>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
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            </securityTitle>
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                <value>2026-01-02</value>
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            <expirationDate>
                <footnoteId id="F4"/>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>72886</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <equitySwapInvolved>0</equitySwapInvolved>
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                </sharesOwnedFollowingTransaction>
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                </directOrIndirectOwnership>
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                <transactionShares>
                    <value>66372</value>
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                <transactionPricePerShare>
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                    <value>D</value>
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                <footnoteId id="F5"/>
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                    <value>Common Shares</value>
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                </underlyingSecurityShares>
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    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each unit represents a contingent right to receive one common share or an equivalent amount of cash, or a combination of the two, at the discretion of BlackBerry Limited.</footnote>
        <footnote id="F2">Sales to cover withholding taxes upon vesting of Restricted Share Units (&quot;RSUs&quot;)&quot;.</footnote>
        <footnote id="F3">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.80 to $3.87, exclusive of any fees, commissions or other expenses. The Reporting Person undertakes to provide BlackBerry, any shareholder of BlackBerry, or the Staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.</footnote>
        <footnote id="F4">This award was granted on January 2, 2024 and, assuming continued employment through the applicable vesting date, vests in three equal annual instalments ending January 2, 2027.</footnote>
        <footnote id="F5">This award was granted on April 2, 2025, and assuming continued employment through the applicable vesting date, vests in twelve equal quarterly installments ending April 2, 2028.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Fraser Deziel, Attorney-in-Fact for John Giamatteo</signatureName>
        <signatureDate>2026-01-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
