<SEC-DOCUMENT>0000895728-18-000067.txt : 20181109
<SEC-HEADER>0000895728-18-000067.hdr.sgml : 20181109
<ACCEPTANCE-DATETIME>20181109163127
ACCESSION NUMBER:		0000895728-18-000067
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181108
FILED AS OF DATE:		20181109
DATE AS OF CHANGE:		20181109

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROONEY ROBERT R
		CENTRAL INDEX KEY:			0001210480

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15254
		FILM NUMBER:		181173507

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENBRIDGE INC
		CENTRAL INDEX KEY:			0000895728
		STANDARD INDUSTRIAL CLASSIFICATION:	PIPE LINES (NO NATURAL GAS) [4610]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A0
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 425 - 1ST STREET SW
		CITY:			CALGARY
		STATE:			A0
		ZIP:			T2P 3L8
		BUSINESS PHONE:		403-231-3900

	MAIL ADDRESS:	
		STREET 1:		200 425 - 1ST STREET SW
		CITY:			CALGARY
		STATE:			A0
		ZIP:			T2P 3L8

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IPL ENERGY INC
		DATE OF NAME CHANGE:	19940616

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERPROVINCIAL PIPE LINE SYSTEM INC
		DATE OF NAME CHANGE:	19930108
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_154179907023056.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-11-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000895728</issuerCik>
        <issuerName>ENBRIDGE INC</issuerName>
        <issuerTradingSymbol>ENB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001210480</rptOwnerCik>
            <rptOwnerName>ROONEY ROBERT R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ENBRIDGE INC.</rptOwnerStreet1>
            <rptOwnerStreet2>200, 425 1ST STREET SW</rptOwnerStreet2>
            <rptOwnerCity>CALGARY</rptOwnerCity>
            <rptOwnerState>A0</rptOwnerState>
            <rptOwnerZipCode>T2P 3L8</rptOwnerZipCode>
            <rptOwnerStateDescription>ALBERTA, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>See Remarks</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2018-11-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6248</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17645</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Pursuant to the Arrangement Agreement, dated September 17, 2018 (the &quot;Arrangement Agreement&quot;), between Enbridge Inc. (&quot;Enbridge&quot;) and Enbridge Income Fund Holdings Inc. (&quot;ENF&quot;), at the closing of the transactions contemplated by the Arrangement Agreement on November 8, 2018, each common share of ENF (&quot;ENF Share&quot;) was exchanged for 0.7350 of a common share of Enbridge and cash of CAN$0.45 per ENF Share. The market value of shares of Enbridge's common stock at the closing of such transactions was CAN$43.32.</footnote>
        <footnote id="F2">Includes 761 Enbridge Common Shares acquired by the Reporting Person between March 16, 2018 and November 8, 2018 under the Enbridge Employee Savings Plan in transactions that were exempt under Rule 16b-3(c), and 12 Enbridge Common Shares acquired by the Reporting Person between March 16, 2018 and November 8, 2018 under the Enbridge Dividend Reinvestment and Share Purchase Plan in transactions that were exempt under Rule 16a-11.</footnote>
    </footnotes>

    <remarks>Executive Vice President &amp; Chief Legal Officer</remarks>

    <ownerSignature>
        <signatureName>/s/ Michelle Lowther, attorney-in-fact</signatureName>
        <signatureDate>2018-11-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
