FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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

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(Print or Type Responses)

1. Name and Address of Reporting Person *   Jennings Andrew 2. Date of Event Requiring Statement (Month/Day/Year) 10/01/2007 3. Issuer Name and Ticker or Trading Symbol FAIR ISAAC CORP [FIC] (Last) (First) (Middle) 901 MARQUETTE AVENUE, SUITE 3200 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Sr. Vice President 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) MINNEAPOLIS, MN 55402 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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 7,824.5987 D (1) Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		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
Non-Qualified Stock Option (right to buy)	04/24/2002(2)	04/24/2011	Common Stock	3,500	$ 18.0741	D	Â
Non-Qualified Stock Option (right to buy)	11/29/2003(2)	11/29/2012	Common Stock	15,000	$ 29.2	D	Â
Non-Qualified Stock Option (right to buy)	11/17/2004(2)	11/16/2013	Common Stock	15,000	$ 35.5	D	Â
Non-Qualified Stock Option (right to buy)	08/02/2005(2)	08/01/2014	Common Stock	15,000	$ 28.75	D	Â
Non-Qualified Stock Option (right to buy)	11/15/2005(2)	11/14/2014	Common Stock	10,000	$ 32.01	D	Â
Non-Qualified Stock Option (right to buy)	12/20/2006(2)	12/19/2012	Common Stock	20,000	$ 43.58	D	Â
Non-Qualified Stock Option (right to buy)	12/18/2007(2)	12/17/2013	Common Stock	12,500	$ 41.74	D	Â
Restricted Stock Units	12/18/2007(3)	  (4)	Common Stock	2,500	$ (5)	D	Â
Restricted Stock Units	07/31/2008(3)	  (4)	Common Stock	7,500	$ (5)	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Jennings Andrew 901 MARQUETTE AVENUE SUITE 3200 MINNEAPOLIS, MN 55402	Â	Â	  Sr. Vice President	Â

Signatures

/s/ Nancy E. Fraser, Attorney-in-fact		10/03/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Common stock holdings include shares purchased through the Company's ESPP.
(2)	This option vests in four equal annual installments commencing on this date.
(3)	The restricted stock units vest in four equal annual installments beginning on the date shown and vested shares will be delivered to the reporting person as soon as practicable thereafter.
(4)	No expiration date.
(5)	Each restricted stock unit represents a right to receive one share of Fair Isaac common stock contingent upon continued employment.

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