<SEC-DOCUMENT>0000832988-22-000040.txt : 20220317
<SEC-HEADER>0000832988-22-000040.hdr.sgml : 20220317
<ACCEPTANCE-DATETIME>20220317193035
ACCESSION NUMBER:		0000832988-22-000040
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220315
FILED AS OF DATE:		20220317
DATE AS OF CHANGE:		20220317

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lovejoy Stephen E.
		CENTRAL INDEX KEY:			0001743050

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32349
		FILM NUMBER:		22750552

	MAIL ADDRESS:	
		STREET 1:		C/O SIGNET JEWELERS LIMITED
		STREET 2:		375 GHENT ROAD
		CITY:			AKRON
		STATE:			OH
		ZIP:			44333

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SIGNET JEWELERS LTD
		CENTRAL INDEX KEY:			0000832988
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-JEWELRY STORES [5944]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			0201

	BUSINESS ADDRESS:	
		STREET 1:		CLARENDON HOUSE
		STREET 2:		2 CHURCH STREET
		CITY:			HAMILTON
		STATE:			D0
		ZIP:			HM11
		BUSINESS PHONE:		44-207-317-9700

	MAIL ADDRESS:	
		STREET 1:		C/O 15 GOLDEN SQUARE
		CITY:			LONDON
		STATE:			X0
		ZIP:			W1F9JG

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SIGNET GROUP PLC
		DATE OF NAME CHANGE:	19931213

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RATNERS GROUP PLC
		DATE OF NAME CHANGE:	19931213
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_164755981233278.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-03-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000832988</issuerCik>
        <issuerName>SIGNET JEWELERS LTD</issuerName>
        <issuerTradingSymbol>SIG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001743050</rptOwnerCik>
            <rptOwnerName>Lovejoy Stephen E.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>CLARENDON HOUSE</rptOwnerStreet1>
            <rptOwnerStreet2>2 CHURCH STREET</rptOwnerStreet2>
            <rptOwnerCity>HAMILTON</rptOwnerCity>
            <rptOwnerState>D0</rptOwnerState>
            <rptOwnerZipCode>HM11</rptOwnerZipCode>
            <rptOwnerStateDescription>BERMUDA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Supply Chain Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares, par value $0.18</value>
            </securityTitle>
            <transactionDate>
                <value>2022-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>38624</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>86078</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares, par value $0.18</value>
            </securityTitle>
            <transactionDate>
                <value>2022-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>28396</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>114474</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares, par value $0.18</value>
            </securityTitle>
            <transactionDate>
                <value>2022-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>11318</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>72.92</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>103156</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents restricted stock units acquired by the reporting person upon the achievement of the performance criteria of the performance-based restricted stock units granted on August 14, 2020, as certified by the Human Capital Management &amp; Compensation Committee on March 15, 2022. The common shares underlying these restricted stock units will vest in full on January 28, 2023, subject to the reporting person's continued service with the issuer through such date.</footnote>
        <footnote id="F2">Represents common shares acquired by the reporting person upon the achievement of the performance criteria of the performance-based restricted stock units granted on April 25, 2019, as certified by the Human Capital Management &amp; Compensation Committee on March 15, 2022.</footnote>
        <footnote id="F3">Reflects the number of shares withheld for tax purposes upon the settlement and vesting of the performance-based restricted stock units granted on April 25, 2019.</footnote>
        <footnote id="F4">Reflects the average of the high and low sale price of the common shares on the date of vest.</footnote>
        <footnote id="F5">Includes 2,548 restricted shares and 68,085 restricted stock units, both of which are subject to certain vesting and forfeiture provisions.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>J. Matthew Shady, Attorney in Fact</signatureName>
        <signatureDate>2022-03-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
