EXHIBIT 23.1
                                                                   ------------

KPMG LLP
Suite 900, Morgan Keegan Tower
Fifty North Front Street
Memphis, TN 38103


            Consent of Independent Registered Public Accounting Firm


The Board of Directors
First Horizon National Corporation:

We consent to the  incorporation by reference in the  registration  statement on
Form S-8  pertaining  to the  registering  of additional  deferred  compensation
obligations  under the FTN Financial  Deferred  Compensation Plan of our reports
dated March 11, 2005, with respect to the  consolidated  statements of condition
of First Horizon National  Corporation as of December 31, 2004 and 2003, and the
related consolidated statements of income,  shareholders' equity, and cash flows
for  each of the  years  in the  three-year  period  ended  December  31,  2004,
management's  assessment of the effectiveness of internal control over financial
reporting as of December 31, 2004,  and the  effectiveness  of internal  control
over financial reporting as of December 31, 2004, which reports are incorporated
by  reference  in the  Company's  2004  Annual  Report on Form 10-K,  and to all
references to our firm included therein.


  /s/ KPMG LLP
Memphis, Tennessee
April 22, 2005