<SEC-DOCUMENT>0001127602-19-020604.txt : 20190604
<SEC-HEADER>0001127602-19-020604.hdr.sgml : 20190604
<ACCEPTANCE-DATETIME>20190604115555
ACCESSION NUMBER:		0001127602-19-020604
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190531
FILED AS OF DATE:		20190604
DATE AS OF CHANGE:		20190604

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MAYER STEVEN F
		CENTRAL INDEX KEY:			0001280289

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36102
		FILM NUMBER:		19875692

	MAIL ADDRESS:	
		STREET 1:		11812 SAN VICENTE BLVD. # 300
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90049

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Knowles Corp
		CENTRAL INDEX KEY:			0001587523
		STANDARD INDUSTRIAL CLASSIFICATION:	HOUSEHOLD AUDIO & VIDEO EQUIPMENT [3651]
		IRS NUMBER:				901002689
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1151 MAPLEWOOD DRIVE
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143
		BUSINESS PHONE:		630-250-5100

	MAIL ADDRESS:	
		STREET 1:		1151 MAPLEWOOD DRIVE
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-05-31</periodOfReport>

    <issuer>
        <issuerCik>0001587523</issuerCik>
        <issuerName>Knowles Corp</issuerName>
        <issuerTradingSymbol>KN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001280289</rptOwnerCik>
            <rptOwnerName>MAYER STEVEN F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1151 MAPLEWOOD DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ITASCA</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60143</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2019-05-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10808</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10808</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Restricted Stock Unit (RSU) awarded as compensation for services as a Director pursuant to the Knowles Corporation 2018 Equity and Cash Incentive Plan.  The RSUs will vest on the date of the Corporation's 2020 annual meeting of shareholders and convert into common stock on a one-for-one basis at that time unless the Director has elected to defer receipt of such shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Robert J. Perna, by POA</signatureName>
        <signatureDate>2019-06-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
