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                               POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that each person whose signature
appears below does hereby constitute and appoint ELBERT L. THOMAS, JR., JAMES
F. KEEN, CLYDE A. BILLINGS, JR., and TERESA A. FEHRMAN, jointly and each of
them severally, his or her true and lawful attorney-in-fact and agent, with
full power of substitution and resubstitution, for him or her and in his or her
name, place and stead, in any and all capacities, to execute and sign the
Registration Statement on Form S-8 to be filed with the Securities and Exchange
Commission, pursuant to the provisions of the Securities Act of 1933, by First
Tennessee National Corporation ("Corporation") relating to the issuance of
2,100,000 shares of the Corporation's Common Stock, par value $1.25 per share,
pursuant to the First Tennessee National Corporation 1997 Employee Stock Option
Plan ("Plan") and, further, to execute and sign any and all pre-effective and
post-effective amendments thereto and to file the same, with all exhibits
thereto and other documents in connection therewith, with the Securities and
Exchange Commission, granting unto said attorneys-in-fact and agents, and each
of them, or their or his or her substitute or substitutes, full power and
authority to do and perform each and every act and thing requisite or necessary
to be done in and about the premises, as fully to all intents and purposes as
the undersigned might or could do in person, hereby ratifying and confirming
all the acts that said attorneys-in-fact and agents, or any of them, or their
or his or her substitute or substitutes, may lawfully do or cause to be done by
virtue hereof.



         Signature                        Title                                            Date
         ---------                        -----                                            ----
                                                                               
Ralph Horn                        Chairman of the Board, President                   October 31, 1996
- --------------------------        and Chief Executive Officer and a
Ralph Horn                        Director (principal executive officer)
                                  

Elbert L. Thomas, Jr.             Executive Vice President and                       October 31, 1996
- --------------------------        Chief Financial Officer
Elbert L. Thomas, Jr.             (principal financial officer)
                                  

James F. Keen                     Senior Vice President and                          October 31, 1996
- --------------------------        Controller (principal
James F. Keen                     accounting officer)
                                  

Robert C. Blattberg               Director                                           October 31, 1996
- --------------------------
Robert C. Blattberg               
                                  

Carlos H. Cantu                   Director                                           October 31, 1996
- --------------------------
Carlos H. Cantu






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George E. Cates                   Director                                           October 31, 1996
- --------------------------        
George E. Cates                   
                                  
                                  
James A. Haslam, III              Director                                           October 31, 1996
- --------------------------        
James A. Haslam, III              
                                  
                                  
R. Brad Martin                    Director                                           October 31, 1996
- --------------------------        
R. Brad Martin                    
                                  
                                  
Joseph Orgill, III                Director                                           October 31, 1996
- --------------------------        
Joseph Orgill, III                
                                  
                                  
Vicki G. Roman                    Director                                           October 31, 1996
- --------------------------        
Vicki G. Roman                    
                                  
                                  
Michael D. Rose                   Director                                           October 31, 1996
- --------------------------        
Michael D. Rose                   
                                  
                                  
William B. Sansom                 Director                                           October 31, 1996
- --------------------------        
William B. Sansom                 
                                  
                                  
Gordon P. Street, Jr.             Director                                           October 31, 1996
- --------------------------
Gordon P. Street, Jr.






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