<SEC-DOCUMENT>0001570585-20-000221.txt : 20200702
<SEC-HEADER>0001570585-20-000221.hdr.sgml : 20200702
<ACCEPTANCE-DATETIME>20200702173723
ACCESSION NUMBER:		0001570585-20-000221
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200630
FILED AS OF DATE:		20200702
DATE AS OF CHANGE:		20200702

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROMRELL LARRY E
		CENTRAL INDEX KEY:			0001120556

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35961
		FILM NUMBER:		201011079

	MAIL ADDRESS:	
		STREET 1:		12300 LIBERTY BLVD.
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112

	FORMER NAME:	
		FORMER CONFORMED NAME:	ROMRELL LARRY E.
		DATE OF NAME CHANGE:	20100209

	FORMER NAME:	
		FORMER CONFORMED NAME:	ROMWELL LARRY E
		DATE OF NAME CHANGE:	20100106

	FORMER NAME:	
		FORMER CONFORMED NAME:	ROMRELL LARRY E
		DATE OF NAME CHANGE:	20000728

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Liberty Global plc
		CENTRAL INDEX KEY:			0001570585
		STANDARD INDUSTRIAL CLASSIFICATION:	CABLE & OTHER PAY TELEVISION SERVICES [4841]
		IRS NUMBER:				981112770
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		161 HAMMERSMITH ROAD
		CITY:			HAMMERSMITH
		STATE:			X0
		ZIP:			W6 8BS
		BUSINESS PHONE:		303-220-6600

	MAIL ADDRESS:	
		STREET 1:		1550 WEWATTA ST,
		STREET 2:		SUITE 1000
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Liberty Global Corp Ltd
		DATE OF NAME CHANGE:	20130227

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Lynx Europe Ltd.
		DATE OF NAME CHANGE:	20130226
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_159372581419588.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-06-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001570585</issuerCik>
        <issuerName>Liberty Global plc</issuerName>
        <issuerTradingSymbol>LBTY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001120556</rptOwnerCik>
            <rptOwnerName>ROMRELL LARRY E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>161 HAMMERSMITH ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Share Option A (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>21.86</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-06-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8772</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-06-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8772.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8772</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Share Option C (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>21.51</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-06-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>17543</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-06-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class C Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>17543.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17543</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The option vests in three equal annual installments commencing on the date of the Issuer's 2021 annual general meeting of shareholders and on the date of each annual general meeting of shareholders thereafter.</footnote>
    </footnotes>

    <remarks>The trading symbols for the Issuer's classes of ordinary shares are LBTYA, LBTYB, and LBTYK.</remarks>

    <ownerSignature>
        <signatureName>/s/ Isabel Coberly, Attorney-in-Fact</signatureName>
        <signatureDate>2020-07-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
