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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 MKfxLnzclaGB3tbpQC1oHw3CXyx34GKzMwiD0se7i/81bz56Bfx9JDAgPI/mYCuh
 bwxfZzamFAex5oj2+MMuPg==

<SEC-DOCUMENT>0001140361-08-013543.txt : 20080523
<SEC-HEADER>0001140361-08-013543.hdr.sgml : 20080523
<ACCEPTANCE-DATETIME>20080523162420
ACCESSION NUMBER:		0001140361-08-013543
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080522
FILED AS OF DATE:		20080523
DATE AS OF CHANGE:		20080523

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MULTI FINELINE ELECTRONIX INC
		CENTRAL INDEX KEY:			0000830916
		STANDARD INDUSTRIAL CLASSIFICATION:	PRINTED CIRCUIT BOARDS [3672]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		3140 E CORONADO ST
		STREET 2:		STE A
		CITY:			ANAHEIM
		STATE:			CA
		ZIP:			92806
		BUSINESS PHONE:		7142381487

	MAIL ADDRESS:	
		STREET 1:		3140 E CORONADO ST
		STREET 2:		STE A
		CITY:			ANAHEIM
		STATE:			CA
		ZIP:			92806

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STARK BRIAN JAY
		CENTRAL INDEX KEY:			0001010208

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50812
		FILM NUMBER:		08858515

	BUSINESS ADDRESS:	
		STREET 1:		3600 SOUTH LAKE DR
		CITY:			ST FRANCIS
		STATE:			WI
		ZIP:			53235
		BUSINESS PHONE:		414 294 7000

	MAIL ADDRESS:	
		STREET 1:		10556 N PORT WASHINGTON RD
		CITY:			MEQUON
		STATE:			WI
		ZIP:			53092

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROTH MICHAEL
		CENTRAL INDEX KEY:			0001010207

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50812
		FILM NUMBER:		08858516

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		4142411810

	MAIL ADDRESS:	
		STREET 1:		10556 N PORT WASHINGTON RD
		CITY:			MEQUON
		STATE:			WI
		ZIP:			53092
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-05-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000830916</issuerCik>
        <issuerName>MULTI FINELINE ELECTRONIX INC</issuerName>
        <issuerTradingSymbol>MFLX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001010207</rptOwnerCik>
            <rptOwnerName>ROTH MICHAEL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O STARK INVESTMENTS</rptOwnerStreet1>
            <rptOwnerStreet2>3600 SOUTH LAKE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ST. FRANCIS</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53235</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001010208</rptOwnerCik>
            <rptOwnerName>STARK BRIAN JAY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O STARK INVESTMENTS</rptOwnerStreet1>
            <rptOwnerStreet2>3600 SOUTH LAKE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ST. FRANCIS</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53235</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1300</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3469142</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Stark Master Fund Ltd., Stark Onshore Master Holding LLC and Stark Asia Master Fund Ltd.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.02</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3468942</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Stark Master Fund Ltd., Stark Onshore Master Holding LLC and Stark Asia Master Fund Ltd.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.04</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3468842</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Stark Master Fund Ltd., Stark Onshore Master Holding LLC and Stark Asia Master Fund Ltd.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The shares of Common Stock are held directly by Stark Master Fund Ltd. (&quot;Stark Master&quot;), Stark Onshore Master Holding LLC (&quot;Stark Onshore&quot;) and Stark Asia Master Fund Ltd. (&quot;Stark Asia&quot;). Reporting Persons direct the management of Stark Offshore Management, LLC (&quot;Stark Offshore&quot;), which acts as investment manager and has sole power to direct the management of Stark Master and Stark Onshore, and Stark Asia Management LLC (&quot;Stark Asia Management&quot;), which acts as investment manager and has sole power to direct the management of Stark Asia. As Managing Members of Stark Offshore and Stark Asia Management, Reporting Persons possess voting and dispositive power over all of the foregoing shares. Therefore, for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, Reporting Persons may be deemed to be the beneficial owners of, but hereby disclaim such beneficial ownership of, the foregoing shares.</footnote>
    </footnotes>

    <remarks>(1) Mr. Roth and Mr. Stark authorize and designate Todd M. W. Turall to file this Form 4 on each of their own behalf pursuant to those certain Powers of Attorney incorporated by reference to the Schedule 13G filed on behalf of Michael A Roth and Brian Jay Stark on March 22, 2006 and April 17, 2006, respectively.</remarks>

    <ownerSignature>
        <signatureName>/s/ Todd M. W. Turall, as Attorney-in-Fact for  Michael A. Roth(1)</signatureName>
        <signatureDate>2008-05-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Todd M.W. Turall, as Attorney-in-Fact for Brian Jay Stark(1)</signatureName>
        <signatureDate>2008-05-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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