EXHIBIT 24.1
                                POWER OF ATTORNEY

     Each of the  undersigned  directors and officers of First Horizon  National
Corporation, a Tennessee corporation (the "Company"),  hereby appoints Marlin L.
Mosby, III, James F. Keen, Clyde A. Billings,  Jr., and Milton A. Gutelius, Jr.,
and each of them or their  successors as officers of the Company  acting singly,
the true and lawful agents and attorneys of the undersigned,  with full power of
substitution  and  re-substitution,   to  do  all  things  and  to  execute  all
instruments  which any of them may deem  necessary  or  advisable  to enable the
Company to comply with the  Securities  Act of 1933, as amended,  and any rules,
regulations  and  requirements  of the  Securities  and Exchange  Commission  in
respect thereof,  in connection with the registration under such Act on Form S-8
of: (a) $125 million additional amount of Deferred Compensation Obligations ("DC
Obligations")  of the  Company  to be issued  under the FTN  Financial  Deferred
Compensation  Plan (the "FTN  Plan");  (b) $60 million  additional  amount of DC
Obligations  of the Company to be issued  under the First  Horizon  Nonqualified
Deferred  Compensation  Plan (the "FHHL Plan");  (c) any  previously  registered
amounts of DC  Obligations  remaining  unsold under the First  Horizon  National
Corporation   Nonqualified   Deferred   Compensation   Plan   (Registration  No.
333-108738);  (d) any previously  registered amounts of DC Obligations remaining
unsold under the FTN Plan (Registration No. 333-110845);  and (e) any previously
registered  amounts  of DC  Obligations  remaining  unsold  under  the FHHL Plan
(Registration No. 333-106015). This authorization includes the authority to sign
the name of each of the  undersigned in the capacities  indicated  below to such
proposed  Registration  Statements  to be filed  in  respect  of the  securities
described  in clauses (a) and (b) above,  and to any  amendments  to any of such
proposed Registration Statements or to any of the Registration Statements listed
in clauses (c), (d), or (e) after this date.

     IN WITNESS  WHEREOF,  each of the  undersigned  has executed a copy of this
Power of Attorney as of April 19, 2005.

/s/ J. Kenneth Glass
    J. Kenneth Glass
    Chairman of the Board, President, Chief Exec. Officer, Director
    (Principal Executive Officer)

/s/ Marlin L. Mosby, III
    Marlin L. Mosby, III
    Executive Vice President and Chief Financial Officer
    (Principal Financial Officer)

/s/ James F. Keen
    James F. Keen
    Executive Vice President and Corporate Controller
    (Principal Accounting Officer)

/s/ Robert C. Blattberg
    Robert C. Blattberg
    Director

/s/ Simon F. Cooper
    Simon F. Cooper
    Director

/s/ James A. Haslam, III
    James A. Haslam, III
    Director




/s/ R. Brad Martin
    R. Brad Martin
    Director

/s/ Vicki R. Palmer
    Vicki R. Palmer
    Director

/s/ Michael D. Rose
    Michael D. Rose
    Director

/s/ Mary F. Sammons
    Mary F. Sammons
    Director

/s/ William B. Sansom
    William B. Sansom
    Director

/s/ Jonathan P. Ward
    Jonathan P. Ward
    Director

/s/ Luke Yancy III
    Luke Yancy III
    Director