<SEC-DOCUMENT>0000712034-21-000025.txt : 20210304
<SEC-HEADER>0000712034-21-000025.hdr.sgml : 20210304
<ACCEPTANCE-DATETIME>20210304173628
ACCESSION NUMBER:		0000712034-21-000025
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210302
FILED AS OF DATE:		20210304
DATE AS OF CHANGE:		20210304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Dudek James
		CENTRAL INDEX KEY:			0001420780

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08454
		FILM NUMBER:		21715510

	MAIL ADDRESS:	
		STREET 1:		C/O RICHARDSON ELECTRONICS, LTD
		STREET 2:		PO BOX 393, 40W267 KESLINGER ROAD
		CITY:			LAFOX
		STATE:			IL
		ZIP:			60147

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ACCO BRANDS Corp
		CENTRAL INDEX KEY:			0000712034
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANKBOOKS, LOOSELEAF BINDERS & BOOKBINDING & RELATED WORK [2780]
		IRS NUMBER:				362704017
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		FOUR CORPORATE DRIVE
		CITY:			LAKE ZURICH
		STATE:			IL
		ZIP:			60047
		BUSINESS PHONE:		847-541-9500

	MAIL ADDRESS:	
		STREET 1:		FOUR CORPORATE DRIVE
		CITY:			LAKE ZURICH
		STATE:			IL
		ZIP:			60047

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACCO BRANDS CORP
		DATE OF NAME CHANGE:	20050817

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ACCO WORLD CORP
		DATE OF NAME CHANGE:	19830106
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_161489737363303.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-03-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000712034</issuerCik>
        <issuerName>ACCO BRANDS Corp</issuerName>
        <issuerTradingSymbol>ACCO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001420780</rptOwnerCik>
            <rptOwnerName>Dudek James</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ACCO BRANDS CORP</rptOwnerStreet1>
            <rptOwnerStreet2>FOUR CORPORATE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>LAKE ZURICH</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60047</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP, Corp Controller and CAO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-03-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5939</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2024-03-03</value>
            </exerciseDate>
            <expirationDate>
                <value>2024-03-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5939.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5939</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.42</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-03-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>19795</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2022-03-03</value>
            </exerciseDate>
            <expirationDate>
                <value>2031-03-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>19795.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>19795</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. Each RSU represents the right to receive one share of the Issuer's common stock on March 3, 2024 provided the Reporting Person remains employed by the Issuer at that time, subject to acceleration as provided in said Plan.</footnote>
        <footnote id="F2">Nonqualified employee stock options granted under the Issuer's Incentive Plan. One-third of original grant vests annually. Options expire ten years from the grant date, if not earlier terminated or exercised in full, subject to acceleration as provided in said Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Pamela R. Schneider, Attorney-in-fact for James M. Dudek Jr.</signatureName>
        <signatureDate>2021-03-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
