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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 KPufvMqN5CuCz2CnkBnrSxrqm0O4osTpqaArnCSXbLgmQyBarqCczSErIxzWMOxQ
 lKL3A7lyhLRpgKemBpZobQ==

<SEC-DOCUMENT>0000317771-03-000058.txt : 20030730
<SEC-HEADER>0000317771-03-000058.hdr.sgml : 20030730
<ACCEPTANCE-DATETIME>20030730100819
ACCESSION NUMBER:		0000317771-03-000058
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030728
FILED AS OF DATE:		20030730

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TELLABS INC
		CENTRAL INDEX KEY:			0000317771
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		IRS NUMBER:				363831568
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE TELLABS CENTER
		STREET 2:		1415 WEST DIEHL ROAD
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
		BUSINESS PHONE:		630-378-8800

	MAIL ADDRESS:	
		STREET 1:		ONE TELLABS CENTER
		STREET 2:		1415 WEST DIEHL ROAD
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BIRCK MICHAEL J
		CENTRAL INDEX KEY:			0001012910
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09692
		FILM NUMBER:		03810217

	BUSINESS ADDRESS:	
		STREET 1:		TELLABS OPERATIONS INC
		STREET 2:		4951 INDIANA AVENUE
		CITY:			LISLE
		STATE:			IL
		ZIP:			60532
		BUSINESS PHONE:		6305274598

	MAIL ADDRESS:	
		STREET 1:		MOLEX INC
		STREET 2:		2222 WELLINGTON COURT
		CITY:			LISLE
		STATE:			IL
		ZIP:			60532
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-07-28</periodOfReport>
    <issuer>
        <issuerCik>0000317771</issuerCik>
        <issuerName>TELLABS INC</issuerName>
        <issuerTradingSymbol>TLAB</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001012910</rptOwnerCik>
            <rptOwnerName>BIRCK MICHAEL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TELLABS</rptOwnerStreet1>
            <rptOwnerStreet2>1415 W. DIEHL ROAD</rptOwnerStreet2>
            <rptOwnerCity>NAPERVILLE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60563</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Chairman and Chief Executive O</officerTitle></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeTransaction><securityTitle><value>Employee Stock Options (Rights to Buy)</value></securityTitle><conversionOrExercisePrice><value>6.50</value></conversionOrExercisePrice><transactionDate><value>2003-07-28</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>100000</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F1"/></exerciseDate><expirationDate><value>2013-07-28</value></expirationDate><underlyingSecurity><underly
ingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>100000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>300000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">All options become exercisable in cumulative annual installments of 20%, 20% and 60% respectively on the 1st, 2nd and 3rd anniversaries of the grant date.</footnote></footnotes><remarks/><ownerSignature><signatureName>Michael J. Birck</signatureName><signatureDate>2003-07-29</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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