-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 DI08umhobySrgzG9b/SePHtFwP7idnlXaTTFDJxb/LOQFs1SlKxaWN8AZ5hL7rxe
 fVjFz+KTfIaOwQdw2qR0kQ==

<SEC-DOCUMENT>0000036966-03-000048.txt : 20030924
<SEC-HEADER>0000036966-03-000048.hdr.sgml : 20030924
<ACCEPTANCE-DATETIME>20030924160141
ACCESSION NUMBER:		0000036966-03-000048
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030923
FILED AS OF DATE:		20030924

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST TENNESSEE NATIONAL CORP
		CENTRAL INDEX KEY:			0000036966
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				620803242
		STATE OF INCORPORATION:			TN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		165 MADISON AVE
		CITY:			MEMPHIS
		STATE:			TN
		ZIP:			38103
		BUSINESS PHONE:		9015234638

	MAIL ADDRESS:	
		STREET 1:		165 MADISON AVE
		CITY:			MEMPHIS
		STATE:			TN
		ZIP:			38103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRST TENNESSEE BANKS INC
		DATE OF NAME CHANGE:	19600201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GLASS J KENNETH
		CENTRAL INDEX KEY:			0001224966

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15185
		FILM NUMBER:		03908190

	BUSINESS ADDRESS:	
		STREET 1:		FIRST TENNESSEE NATIONAL CORP
		STREET 2:		165 MADISON AVENUE
		CITY:			MEMPHIS
		STATE:			TN
		ZIP:			38103
		BUSINESS PHONE:		9015235679

	MAIL ADDRESS:	
		STREET 1:		165 MADISON AVENUE
		CITY:			MEMPHIS
		STATE:			TN
		ZIP:			38103
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001224966d20030924f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-09-23</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000036966</issuerCik><issuerName>FIRST TENNESSEE NATIONAL CORP</issuerName>        <issuerTradingSymbol>FTN</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001224966</rptOwnerCik><rptOwnerName>GLASS J KENNETH</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>FIRST TENNESSEE NATIONAL CORPORATION</rptOwnerStreet1><rptOwnerStreet2>165 MADISON AVENUE</rptOwnerStreet2><rptOwnerCity>MEMPHIS</rptOwnerCity><rptOwnerState>TN</rptOwnerState><rptOwnerZipCode>38103</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>President &amp; CEO</officerTitle><otherText></otherText></reporti
ngOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-09-23</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>10236</value></transactionShares><transactionPricePerShare><value>10.07</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>314760</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></n
onDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>89190</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>401(k) Plan</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>10.07</value></conversionOrExercisePrice><transactionDate><value>2003-09-23</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F2"/></transactionCoding><transactionAmounts><transactionShares><value>10236</value></transactionS
hares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>1995-04-21</value></exerciseDate><expirationDate><value>2004-04-21</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>10236</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">End-of-period total includes adjustment reflecting exempt acquisitions under Issuer's 401(k) Plan. Information is as of the latest available statement.</footnote><footnote id="F
2">Options are exercisable at 20%/yr, starting 1 yr after grant.</footnote></footnotes><ownerSignature><signatureName>Clyde A. Billings, Jr.</signatureName><signatureDate>2003-09-24</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----