Initial Statement of Beneficial Ownership

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Expires: February 28, 2011 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*
Adams Thomas C Jr
2. Date of Event Requiring Statement (MM/DD/YYYY) 9/1/2008
3. Issuer Name and Ticker or Trading Symbol
FIRST HORIZON NATIONAL CORP [FHN]

(Last)        (First)        (Middle)
FIRST HORIZON NATIONAL CORPORATION, 165 MADISON AVENUE
4. Relationship of Reporting Person(s) to Issuer (Check all applicable)
_____ Director                            _____ 10% Owner
___ X ___ Officer (give title below)          _____ Other (specify below)
EVP and Interim CFO /

(Street)
MEMPHIS, TN 38103

(City)              (State)              (Zip) 5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)
_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security
(Instr. 4) 2. Amount of Securities Beneficially Owned
(Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5) 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Common Stock 57265 D

Common Stock 63792 I 401(k) balance

Common Stock 21000 ⁽¹⁾ I By partnership

Common Stock 13.362 I Custodian for son

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)

1. Title of Derivate Security
(Instr. 4) 2. Date Exercisable and Expiration Date
(MM/DD/YYYY) 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5) 6. Nature of Indirect Beneficial Ownership
(Instr. 5)

Date Exercisable Expiration Date Title Amount or Number of Shares

Stock Options (Right to buy) 4/18/2011 ⁽²⁾ 4/18/2015 Common Stock 4543 $13.12 D

Stock Options (Right to buy) 3/1/2004 ⁽³⁾ 3/1/2010 Common Stock 8385 $17.97 D

Stock Options (Right to buy) 3/2/2001 2/23/2011 Common Stock 2451 $30.48 D

Stock Options (Right to buy) 2/23/2005 ⁽³⁾ 2/23/2011 Common Stock 6492 $30.48 D

Stock Options (Right to buy) 2/26/2005 ⁽²⁾ 2/26/2009 Common Stock 5800 $35.14 D

Stock Options (Right to buy) 3/3/2006 ⁽²⁾ 3/3/2010 Common Stock 5927 $38.74 D

Stock Options (Right to buy) 4/20/2010 ⁽²⁾ 4/20/2014 Common Stock 2719 $39.66 D

Stock Options (Right to buy) 4/20/2003 ⁽³⁾ 4/20/2009 Common Stock 4647 $40.13 D

Stock Options (Right to buy) 4/22/2008 ⁽²⁾ 4/22/2012 Common Stock 2719 $40.34 D

Stock Options (Right to buy) 4/21/2009 ⁽²⁾ 4/21/2013 Common Stock 2672 $40.71 D

Stock Options (Right to buy) 2/17/2007 ⁽²⁾ 2/17/2011 Common Stock 5146 $45.73 D

Explanation of Responses:

( 1) Beneficial ownership of 16,000 of the shares held by the partnership is disclaimed

( 2) Options are exercisable 50% after 3 yrs, 100% after 4 yrs.

( 3) Options are exercisable 50% after 4 yrs, 100% after 5 yrs.

Reporting Owners

Reporting Owner Name / Address Relationships

Director 10% Owner Officer Other

Adams Thomas C Jr
FIRST HORIZON NATIONAL CORPORATION
165 MADISON AVENUE
MEMPHIS, TN 38103

EVP and Interim CFO

Signatures

John A. Niemoeller 9/11/2008

^** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table I - Non-Derivative Securities Beneficially Owned
Common Stock	57265	D
Common Stock	63792	I	401(k) balance
Common Stock	21000 ⁽¹⁾	I	By partnership
Common Stock	13.362	I	Custodian for son

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
Stock Options (Right to buy)	4/18/2011 ⁽²⁾	4/18/2015	Common Stock	4543	$13.12	D
Stock Options (Right to buy)	3/1/2004 ⁽³⁾	3/1/2010	Common Stock	8385	$17.97	D
Stock Options (Right to buy)	3/2/2001	2/23/2011	Common Stock	2451	$30.48	D
Stock Options (Right to buy)	2/23/2005 ⁽³⁾	2/23/2011	Common Stock	6492	$30.48	D
Stock Options (Right to buy)	2/26/2005 ⁽²⁾	2/26/2009	Common Stock	5800	$35.14	D
Stock Options (Right to buy)	3/3/2006 ⁽²⁾	3/3/2010	Common Stock	5927	$38.74	D
Stock Options (Right to buy)	4/20/2010 ⁽²⁾	4/20/2014	Common Stock	2719	$39.66	D
Stock Options (Right to buy)	4/20/2003 ⁽³⁾	4/20/2009	Common Stock	4647	$40.13	D
Stock Options (Right to buy)	4/22/2008 ⁽²⁾	4/22/2012	Common Stock	2719	$40.34	D
Stock Options (Right to buy)	4/21/2009 ⁽²⁾	4/21/2013	Common Stock	2672	$40.71	D
Stock Options (Right to buy)	2/17/2007 ⁽²⁾	2/17/2011	Common Stock	5146	$45.73	D

KNOW ALL MEN BY THESE PRESENTS, that the undersigned does hereby constitute and appoint Clyde A. Billings, Jr., John A. Niemoeller, and Shannon M. Hernandez jointly and each of them severally, the undersigned's true and lawful attorney- in-fact and agent, with full power of substitution and resubstitution, for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to:

(1) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of First Horizon National Corporation (the "Corporation"), Forms 3, 4 and 5 and any and all amendments thereto in accor- dance with Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exechange Act"), and the rules thereunder; and

(2) do and perform any and all acts on behalf of the undersigned which may be necessary or desirable to complete and execute any such Forms 3, 4 or 5 or an amendment thereto and timely file such form with the Securities and Exchange Commission and any stock exchange or similar authority; and

(3) take any other action of any type whatsoever in connection with the fore- going which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being undertstood that the documents being executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorneyj-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any lof the rights and powers herein granted, as fully to all intents and purposes as the under- signed might or could do if personally present, hereby ratifying and con- firming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Corporation assuming, any of the undersigned's responsibilities to comply with Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the under- signed is no longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Corporation, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney as of this 14th day of August, 2008.

/s/ Thomas C. Adams, Jr.

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	57265	D
Common Stock	63792	I	401(k) balance
Common Stock	21000 ⁽¹⁾	I	By partnership
Common Stock	13.362	I	Custodian for son

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Options (Right to buy)	4/18/2011 ⁽²⁾	4/18/2015	Common Stock	4543	$13.12	D
Stock Options (Right to buy)	3/1/2004 ⁽³⁾	3/1/2010	Common Stock	8385	$17.97	D
Stock Options (Right to buy)	3/2/2001	2/23/2011	Common Stock	2451	$30.48	D
Stock Options (Right to buy)	2/23/2005 ⁽³⁾	2/23/2011	Common Stock	6492	$30.48	D
Stock Options (Right to buy)	2/26/2005 ⁽²⁾	2/26/2009	Common Stock	5800	$35.14	D
Stock Options (Right to buy)	3/3/2006 ⁽²⁾	3/3/2010	Common Stock	5927	$38.74	D
Stock Options (Right to buy)	4/20/2010 ⁽²⁾	4/20/2014	Common Stock	2719	$39.66	D
Stock Options (Right to buy)	4/20/2003 ⁽³⁾	4/20/2009	Common Stock	4647	$40.13	D
Stock Options (Right to buy)	4/22/2008 ⁽²⁾	4/22/2012	Common Stock	2719	$40.34	D
Stock Options (Right to buy)	4/21/2009 ⁽²⁾	4/21/2013	Common Stock	2672	$40.71	D
Stock Options (Right to buy)	2/17/2007 ⁽²⁾	2/17/2011	Common Stock	5146	$45.73	D

Explanation of Responses:
( 1)	Beneficial ownership of 16,000 of the shares held by the partnership is disclaimed
( 2)	Options are exercisable 50% after 3 yrs, 100% after 4 yrs.
( 3)	Options are exercisable 50% after 4 yrs, 100% after 5 yrs.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Adams Thomas C Jr FIRST HORIZON NATIONAL CORPORATION 165 MADISON AVENUE MEMPHIS, TN 38103			EVP and Interim CFO

Signatures
John A. Niemoeller		9/11/2008
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.