<SEC-DOCUMENT>0001681459-17-000223.txt : 20170614
<SEC-HEADER>0001681459-17-000223.hdr.sgml : 20170614
<ACCEPTANCE-DATETIME>20170614163821
ACCESSION NUMBER:		0001681459-17-000223
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170614
FILED AS OF DATE:		20170614
DATE AS OF CHANGE:		20170614

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TechnipFMC plc
		CENTRAL INDEX KEY:			0001681459
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL & GAS FILED MACHINERY & EQUIPMENT [3533]
		IRS NUMBER:				981283037
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE ST. PAUL'S CHURCHYARD
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC4M 8AP
		BUSINESS PHONE:		44 203 429 3950

	MAIL ADDRESS:	
		STREET 1:		ONE ST. PAUL'S CHURCHYARD
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC4M 8AP

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TechnipFMC Ltd
		DATE OF NAME CHANGE:	20160803

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Waldron Julian
		CENTRAL INDEX KEY:			0001694162

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37983
		FILM NUMBER:		17911555

	MAIL ADDRESS:	
		STREET 1:		C/O TECHNIPFMC PLC
		STREET 2:		ONE ST. PAUL?S CHURCHYARD
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC4M 8AP
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_149747268662442.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-06-14</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001681459</issuerCik>
        <issuerName>TechnipFMC plc</issuerName>
        <issuerTradingSymbol>FTI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001694162</rptOwnerCik>
            <rptOwnerName>Waldron Julian</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TECHNIPFMC PLC</rptOwnerStreet1>
            <rptOwnerStreet2>ONE ST. PAUL'S CHURCHYARD</rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>EC4M 8AP</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP &amp; Chief Operating Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2017-06-14</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>26282</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2017-06-14</value>
            </exerciseDate>
            <expirationDate>
                <value>2021-06-14</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>26282.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26282</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option is exercisable at an exercise price of 42.87EUR per ordinary share.</footnote>
        <footnote id="F2">On January 17, 2017, the reporting person was granted an option to purchase 34,000 ordinary shares at a price of 42.87EUR per ordinary share. The vesting of the option was subject to certain performance criteria that were partially met, resulting in the vesting of the option as to 26,282 ordinary shares.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Lisa P. Wang, Attorney-In-Fact</signatureName>
        <signatureDate>2017-06-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
