Ownership Submission
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 *
  Christopher Alister
 2. Date of Event Requiring Statement (Month/Day/Year)
11/01/2004		 3. Issuer Name and Ticker or Trading Symbol
GARTNER INC [IT]
(Last)
(First)
(Middle)
56 TOP GALLANT ROAD, P.O. BOX 10212		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
SVP, Gartner Events
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

STAMFORD, CT 06904-2212		 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)

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) 01/28/2000(1) 01/28/2008 Common Stock Class A 1,000 $ 1 D  
Non Qualified Stock Option (right to buy) 04/01/2004(2) 04/01/2013 Common Stock Class A 3,000 $ 7.21 D  
Non Qualified Stock Option (right to buy) 12/06/2001(3) 12/06/2010 Common Stock Class A 10,000 $ 7.9531 D  
Non Qualified Stock Option (right to buy) 06/18/2003(4) 06/18/2013 Common Stock Class A 20,000 $ 8.05 D  
Non Qualified Stock Option (right to buy) 11/28/2002(5) 11/28/2011 Common Stock Class A 7,500 $ 9.1 D  
Non Qualified Stock Option (right to buy) 11/09/2000(3) 11/09/2009 Common Stock Class A 50,000 $ 10.313 D  
Non Qualified Stock Option (right to buy) 06/01/2005(6) 06/01/2014 Common Stock Class A 12,000 $ 12.45 D  
Non Qualified Stock Option (right to buy) 01/28/2001(3) 01/28/2010 Common Stock Class A 7,500 $ 15.875 D  
Non Qualified Stock Option (right to buy) 10/13/1999(3) 10/13/2008 Common Stock Class A 5,031 $ 18.601 D  
Non Qualified Stock Option (right to buy) 12/15/1999(3) 12/15/2008 Common Stock Class A 5,146 $ 19.285 D  
Non Qualified Stock Option (right to buy) 04/07/1998(3) 04/06/2007 Common Stock Class A 1,650 $ 19.896 D  
Non Qualified Stock Option (right to buy) 01/28/2000(7) 01/28/2009 Common Stock Class A 6,500 $ 22.705 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Christopher Alister
56 TOP GALLANT ROAD
P.O. BOX 10212
STAMFORD, CT 06904-2212		       SVP, Gartner Events  

Signatures

By: /s/ Gary Papilsky For: Alister Christopher 11/10/2004
**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) The option becomes exercisable in six substantially equal annual installments commencing one year after the date of grant, 01/28/99.
(2) The option becomes exercisable in three substantially equal annual installments commencing one year after the date of grant, 04/1/03.
(3) This option is fully exercisable.
(4) The option becomes exercisable in three substantially equal annual installments commencing one year after the date of grant, 6/18/03.
(5) The option becomes exercisable in three substantially equal annual installments commencing one year after the date of grant, 12/06/2000.
(6) The option becomes exercisable in three substantially equal annual installments commencing one year after the date of grant, 06/1/2004.
(7) 2,500 options are fully exercisable and 4,000 options becomes exercisable 6 years from the date of grant, 01/28/99, subject to acceleration of vesting and exercisability upon the achievement of certain financial performance targets determined by the Board in its sole discretion, and which acceleration has not occurred as of the date hereof.

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