SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549

                                    --------

                                    FORM 11-K

(Mark One):

[X]   ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF
      1934 [NO FEE REQUIRED].

      For the fiscal year ended       December 31, 2003

                                       OR

[ ]  TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT
     OF 1934 [NO FEE REQUIRED].

     For the transition period from      to

 Commission file number    1-14443

A.    Full title of the plan and the address of the plan, if different from that
      of the issuer named below:

                    GARTNER, INC. SAVINGS AND INVESTMENT PLAN

B.    Name of issuer of the securities held pursuant to the plan and the address
      of its principal executive office:

                                 GARTNER, INC.

                               56 TOP GALLANT ROAD

                             STAMFORD, CT 06902-7747



GARTNER, INC.

SAVINGS AND INVESTMENT PLAN

INDEX TO FORM 11-K



                                                                                                     Page
                                                                                                  
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM                                                1

FINANCIAL STATEMENTS:

         Statements of net assets available for benefits as of December 31, 2003 and
              2002                                                                                     2

         Statement of changes in net assets available for benefits for the year ended
              December 31, 2003                                                                        3

Notes to the financial statements                                                                    4 - 8

SUPPLEMENTAL  SCHEDULE:

         Schedule H, line 4i -Schedule of Assets Held (at End of Year) as of                           9
              December 31, 2003
Signatures                                                                                             10

Exhibit Index                                                                                          11




                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN

                 Financial Statements and Supplemental Schedule

                           December 31, 2003 and 2002

     (With Report of Independent Registered Public Accounting Firm Thereon)



                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN

                                TABLE OF CONTENTS



                                                                                     PAGE
                                                                                  
Report of Independent Registered Public Accounting Firm                               1

Statements of Net Assets Available for Benefits as of
     December 31, 2003 and 2002                                                       2

Statement of Changes in Net Assets Available for Benefits
     for the year ended December 31, 2003                                             3

Notes to Financial Statements                                                         4

SUPPLEMENTAL SCHEDULE

Schedule H, Line 4i - Schedule of Assets Held (at End of Year) as of December
     31, 2003                                                                         9




             REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Participants and Administrative Committee of the
   Gartner, Inc. Savings and Investment Plan:

We have audited the accompanying statements of net assets available for benefits
of the Gartner, Inc. Savings and Investment Plan (the Plan) as of December 31,
2003 and 2002, and the related statement of changes in net assets available for
benefits for the year ended December 31, 2003. These financial statements are
the responsibility of the Plan's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company
Accountancy Oversight Board (United States). Those standards require that we
plan and perform the audit to obtain reasonable assurance about whether the
financial statements are free of material misstatement. An audit includes
examining, on a test basis, evidence supporting the amounts and disclosures in
the financial statements. An audit also includes assessing the accounting
principles used and the significant estimates made by management, as well as
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the net assets available for benefits of the Plan as of
December 31, 2003 and 2002 and the changes in the net assets available for
benefits for the year ended December 31, 2003 in conformity with U.S. generally
accepted accounting principles.

Our audits were performed for the purpose of forming an opinion on the basic
financial statements taken as a whole. The supplemental schedule of assets (held
at end of year) as of December 31, 2003 is presented for the purpose of
additional analysis and is not a required part of the basic financial statements
but is supplementary information required by the Department of Labor's Rules and
Regulations for Reporting and Disclosure under the Employee Retirement Income
Security Act of 1974. This supplemental schedule is the responsibility of the
Plan's management. The supplemental schedule has been subjected to the auditing
procedures applied in the audits of the basic financial statements and, in our
opinion, is fairly stated in all material respects in relation to the basic
financial statements taken as a whole.

/s/ KPMG LLP
------------------
June 21, 2004
New York, New York

                                       1


                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN
                 Statements of Net Assets Available for Benefits
                           December 31, 2003 and 2002



                                                                  2003           2002
                                                              ------------   ------------
                                                                       
Assets:
     Investments:
        Cash equivalents                                      $    228,487   $    202,920
        Investments in registered investment company shares    172,618,731    128,280,802
        Gartner, Inc. common stock                               4,061,919      3,330,961
        Participant loans                                        3,492,494      3,049,848
                                                              ------------   ------------
                 Total investments                             180,401,631    134,864,531
                                                              ------------   ------------
     Receivables:
        Employer contributions                                   1,982,459      1,999,371
        Due from custodian for securities sold                      12,694         17,500
                                                              ------------   ------------
                 Total receivables                               1,995,153      2,016,871
                                                              ------------   ------------
                 Total assets                                  182,396,784    136,881,402
                                                              ------------   ------------
Liabilities:

     Accrued expenses                                               69,890         32,270
                                                              ------------   ------------
                 Total liabilities                                  69,890         32,270
                                                              ------------   ------------
                 Net assets available for benefits            $182,326,894   $136,849,132
                                                              ============   ============


See accompanying notes to the financial statements.

                                       2



                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN
                       Statement of Changes in Net Assets
                             Available for Benefits
                          Year ended December 31, 2003

                                                              
Additions:
     Investment income:
        Net appreciation in fair value of investments            $ 31,028,420
        Interest                                                      214,976
        Dividends                                                   2,647,127
                                                                 ------------
                 Investment income                                 33,890,523
     Contributions:
        Participants                                               16,767,026
        Employer                                                    9,069,216
                                                                 ------------
                 Total additions, net                              59,726,765
                                                                 ------------
Deductions:
     Benefits paid to participants                                 14,133,961
     Administrative expenses                                          115,042
                                                                 ------------
                 Total deductions                                  14,249,003
                                                                 ------------
                 Increase in net assets available for benefits     45,477,762

Net assets available for benefits:
     Beginning of year                                            136,849,132
                                                                 ------------
     End of year                                                 $182,326,894
                                                                 ============


See accompanying notes to the financial statements.

                                       3



                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN

                          Notes to Financial Statements

                           December 31, 2003 and 2002

(1)   DESCRIPTION OF THE PLAN

      The following description of the Gartner, Inc. Savings and Investment Plan
      (the Plan) provides only general information. Participants should refer to
      the Plan agreement for a more complete description of the Plan's
      provisions.

      (a)   GENERAL

            The Plan is a defined contribution retirement plan subject to the
            provisions of the Employee Retirement Income Security Act of 1974
            (ERISA). The Plan has been amended and restated at various times in
            order to comply with regulatory guidance, most recently as of
            January 1, 2004 (see note 4).

            The Plan covers substantially all domestic full-time employees of
            Gartner, Inc. and its wholly owned subsidiaries (collectively the
            Company or Employer). Any employee who customarily works at least 20
            hours per week (minimum of 1,000 hours per year) and is at least 18
            years of age is eligible to participate in the Plan.

      (b)   ADMINISTRATION

            The Plan is administered by the Administrative Committee (the Plan
            Committee) which is appointed by the Company's board of directors.
            The Plan Committee is responsible for all administrative aspects of
            the Plan, including selection of trustees and investment managers,
            establishment of investment alternatives, determination of benefit
            eligibility and benefit calculations and interpretation of Plan
            provisions. The Plan Committee has appointed officers of the Company
            to act as trustees (the Trustees) to administer the Plan.
            Administrative expenses are to be paid by the Plan through the use
            of participant forfeitures. Any administrative expenses in excess of
            participant forfeitures will be paid by the Company. For the plan
            years ended December 31, 2003 and 2002, all expenses were paid by
            the Plan.

      (c)   CONTRIBUTIONS

            Participating employees may make annual contributions to the Plan in
            percentages of not less than 1% or more than 60% of total annual
            compensation (50% pre-tax, 10% post-tax), as defined in the Plan
            agreement, subject to Internal Revenue Service (IRS) limitations.
            Participants who are eligible may make pre-tax Catch-Up
            Contributions effective January 1, 2002 subject to the IRS
            limitations.

            For 2003, the Plan requires the Company to match 100% of pre-tax
            participant contributions up to a maximum of 4% of a participant's
            total compensation, or $4,800, which is 40% of the IRS pretax
            contribution limitation for 2003.

            The Plan also provides for a profit sharing contribution comprised
            of the following elements:

            -     Fixed amount - an amount equal to 1% of a participant's base
                  compensation, subject to an IRS limitation.

                                                                     (Continued)

                                       4





                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN

                          Notes to Financial Statements

                           December 31, 2003 and 2002

            -     Discretionary amount - an amount in excess of the fixed amount
                  solely at the discretion of the Company's board of directors
                  based on the financial results of the Company. Employees must
                  be employed on the last day of the year to receive
                  discretionary contributions.

            Fixed profit sharing contributions of $1,980,839 and $1,999,371 for
            the years ended December 31, 2003 and 2002, respectively, are
            included in employer contributions receivable in the Plan's
            financial statements as of December 31, 2003 and 2002, respectively.
            There were no discretionary contributions made to the Plan for the
            Plan years ended December 31, 2003 and 2002.

            A participant may make "after tax" contributions of up to 10% of the
            participant's compensation, subject to a maximum of $20,000 per
            year.

      (d)   PARTICIPANTS' ACCOUNTS

            Separate accounts are maintained for each participant of the Plan
            through the Fidelity Management Trust Company (Fidelity). The
            participants' accounts are adjusted to reflect contributions and
            investment earnings such as interest, dividends, and realized and
            unrealized investment gains and losses.

            At December 31, 2003 and 2002, forfeited nonvested accounts totaled
            $58,755 and $38,575, respectively. These accounts will be used to
            reduce future Plan expenses and employer contributions. Also, in
            2003, Plan expenses were reduced by $47,990 and employer
            contributions were reduced by $252,000 from forfeited nonvested
            accounts.

      (e)   INVESTMENTS

            Participants may elect to invest in a variety of specialized
            investment funds and may make transfers among investment funds at
            their discretion in whole percentages. The Company's board of
            directors has authorized Fidelity to execute transactions upon
            direction from the participant within the framework of the trust
            instrument.

      (f)   VESTING

            Participants are immediately vested in their own contributions and
            in the Employer's matching contributions. Participants vest in the
            profit sharing contributions ratably over a five-year period based
            on date of hire. The date of hire for the employees of acquired
            companies continues to be their historical date of hire by the
            acquired company for vesting purposes.

      (g)   LOANS TO PARTICIPANTS

            Loans to participants are permitted, with the Trustees' consent, in
            accordance with the limits provided by the Internal Revenue Code
            (Code). Loans bear interest at a rate equal to prime plus 1% which
            ranged between 5.0% and 5.25% for loans made during the year ended
            December 31, 2003, and 5.25% and 6.0% for loans made during the year
            ended December 31, 2002. Participants receiving loans from the Plan
            must execute an interest bearing promissory note in the amount of
            the loan. The terms of the promissory note require that all
            participants repay their loans based upon a fixed repayment schedule
            not to exceed a five-year period, except in the case of a primary
            residence loan for which the repayment period is extended to 15
            years. Participant loans are subject to a $1,000

                                                                     (Continued)

                                       5



                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN

                          Notes to Financial Statements

                           December 31, 2003 and 2002

            minimum amount and limited to 50% of a participant's vested account
            balance, not to exceed $50,000.

      (h)   PAYMENT OF BENEFITS

            Benefits are paid upon retirement (on or after age 55), death, or
            termination of employment, and may also be distributed prior to
            termination of employment upon reaching age 59-1/2 or because of
            financial hardship. Participants' benefits are paid in a lump sum
            equal to the vested value of the participant's account at the time
            of payment. With respect to accounts from the former Pension Plan
            that was merged into this Plan in 1993, an annuity (joint and 50%
            survivor for married participants and single life for unmarried
            participants) is the standard form of payment. With respect to such
            Pension Plan accounts, participants may elect a lump sum payment
            instead of the annuity, with spousal consent as applicable.

      (i)   PLAN TERMINATION

            Although it has not expressed any intent to do so, the Company
            reserves the right to fully or partially terminate the Plan at any
            time by action of the board of directors or its designee. In such an
            event, all participants will become fully vested in their account
            balance as of the date of full or partial termination.

(2)   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

      (a)   BASIS OF ACCOUNTING

            The financial statements have been prepared using the accrual basis
            of accounting.

      (b)   VALUATION OF INVESTMENTS

            The Plan's investments are valued at fair value based upon market
            prices quoted on national stock exchanges for the respective funds.
            Shares of registered company investments are valued at the net asset
            value of shares held by the Plan at year end. Participants' loans
            are valued at their outstanding balances, which approximate fair
            value.

      (c)   USE OF ESTIMATES

            The preparation of financial statements in conformity with
            accounting principles generally accepted in the United States of
            America requires management to make significant estimates and
            assumptions that affect the reported amounts of assets and
            liabilities, the disclosures of contingent assets and liabilities at
            the date of the financial statements, and the reported amounts of
            additions to and deductions from net assets during the reporting
            period. Actual results could differ from those estimates.

      (d)   RISKS AND UNCERTAINTIES

            The Plan offers a number of investment options, including Gartner,
            Inc. common stock and a variety of mutual funds. The funds invest in
            U.S. equities, international equities, and fixed income securities.
            Investment securities, in general, are exposed to various risks,
            such as interest rate, credit, and overall market volatility risk.
            Due to the level of risk associated with certain investment
            securities. It

                                                                     (Continued)

                                       6



                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN

                          Notes to Financial Statements

                           December 31, 2003 and 2002

            is reasonably possible that changes in the values of investment
            securities will occur in the near term and that such changes could
            materially affect the amounts reported in the statement of net
            assets available for plan benefits and participant account balances.

            The Plan's exposure to a concentration of credit risk is limited by
            the diversification of investments across twenty-two
            participant-directed fund elections. Additionally, the investments
            within each participant-directed fund are further diversified into
            varied financial instruments, with the exception of the Gartner,
            Inc. Stock Fund, which invests in a single security.

      (e)   INVESTMENT TRANSACTIONS AND RELATED INCOME

            Purchases and sales of interests in the investment funds, along with
            realized gains and losses, are accounted for on the trade date.

            Dividends represent the Plan's share in dividend income of the
            investment funds in which the Plan participates. Dividends are
            recorded on the ex-dividend date. Income from other investments is
            recorded as earned on an accrual basis.

(3)   INVESTMENTS

      Substantially all of the Plan's assets are invested in mutual funds and a
      commingled investment fund managed by Fidelity. A brief description of the
      funds and investments is as follows:

      (a)   GARTNER, INC. STOCK FUND

            The assets of this fund are substantially invested in Gartner, Inc.
            Class A common stock. This fund also maintains interest-bearing
            cash, $204,540 and $153,024 at December 31, 2003 and 2002,
            respectively, to meet liquidity needs from participant withdrawals
            or transfers.

      (b)   FIDELITY RETIREMENT MONEY MARKET FUND

            Investments are held in a diversified portfolio of domestic and
            international short-term fixed income securities such as corporate
            commercial paper, certificates of deposit, Treasury notes and bills,
            and bankers' acceptances.

      (c)   OTHER FUNDS

            The Magellan, Growth Company, OTC Portfolio, and Overseas Funds
            invest in debt and equity securities of companies of varying sizes
            with above average growth potential to achieve long-term capital
            appreciation. The U.S. Equity Index Fund seeks to match the total
            return of the Standard & Poor 500 Index. The Puritan, Equity Income,
            and Intermediate Bond Funds seek current income and capital
            preservation as well as the potential for capital appreciation by
            investing in a diversified portfolio of common and preferred stocks
            and bonds. The Fidelity Freedom Funds are asset allocation funds
            that invest in other Fidelity mutual funds; there are five funds
            that are managed to specific target retirement dates - 2000, 2010,
            2020, 2030, and 2040 and a sixth fund, the Fidelity Freedom Income
            Fund, for those actively seeking high current income. The Fidelity
            Select Portfolios are mutual funds that invest in specific sectors
            or industries. Investors are able to obtain targeted diversification
            with industry specific mutual funds and an opportunity to invest in
            industries with

                                                                     (Continued)

                                       7



                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN

                          Notes to Financial Statements

                           December 31, 2003 and 2002

            high growth potential. As of December 31, 2003, the Fidelity Select
            Consumer Industries Fund was dropped as an investment choice.

            The market value of investments exceeding 5% of Plan assets as of
            December 31, 2003 and 2002 are summarized as follows:



                                                                            2003          2002
                                                                         ----------     ---------
                                                                                  
Investments at fair value as determined by
   quoted market prices:
      Fidelity Retirement Money Market Fund                              $18,021,577    18,275,416
      Fidelity Magellan Fund                                              32,467,883    25,638,106
      Fidelity Growth Company Fund                                        33,666,664    21,968,947
      Fidelity Puritan Fund                                               14,851,187    11,589,344
      Fidelity Equity Income Fund                                         19,400,131    14,288,436
      Fidelity OTC Portfolio Fund                                         10,327,123     7,599,065
      Fidelity Intermediate Bond Fund                                      9,281,493     9,088,626

            During 2003, the Plan's investments (including investments bought,
            sold, and held during the year) increased in value by $31,028,420 as
            follows:

                                  
Registered investment company
  shares                             $30,138,726
Gartner, Inc. Class A common stock       889,694
                                     -----------
                                     $31,028,420
                                     ===========


(4)   PLAN TAX STATUS

      On April 7, 2003, the Plan received a favorable determination letter from
      the Internal Revenue Service, as to the continuing qualification of the
      Plan under Code Section 401(a). Gartner, Inc. believes that the Plan
      currently is designed and being operated in compliance with the applicable
      requirements of the Code and that, therefore, the Plan qualifies under
      Section 401(a) and the related trust is tax-exempt as of December 31,
      2003. Therefore, no provision for income taxes has been included in the
      Plan's financial statements.

(5)   RELATED PARTY TRANSACTIONS

      Certain Plan investments are shares of mutual funds managed by Fidelity
      Management and Research, who is a subsidiary of Fidelity Management Trust
      Company, the Trustee as defined by the Plan, and therefore, these
      transactions qualify as party in interest. Another investment is an
      investment fund comprised primarily of shares of common stock issued by
      Gartner, Inc. Gartner, Inc. is the Plan sponsor as defined by the Plan.

                                       8



                                                                      SCHEDULE I
                                  GARTNER, INC.
                           SAVINGS AND INVESTMENT PLAN
         Schedule H, Line 4i - Schedule of Assets Held (at End of Year)
                                December 31, 2003



                                                                                             CURRENT
                                DESCRIPTION                                SHARES             VALUE
--------------------------------------------------------------           ----------      ----------------
                                                                                   
*    FMTC Institutional Cash Portfolio                                      228,487      $        228,487
*    Fidelity Retirement Money Market Fund                               18,021,577            18,021,577
*    Fidelity Magellan Fund                                                 322,186            32,467,883
*    Fidelity Growth Company Fund                                           672,392            33,666,664
*    Fidelity Puritan Fund                                                  804,071            14,851,187
*    Fidelity Equity Income Fund                                            389,952            19,400,131
*    Fidelity Intermediate Bond Fund                                        870,684             9,281,493
*    Fidelity Overseas Fund                                                 243,148             7,642,149
*    Fidelity OTC Portfolio Fund                                            318,051            10,327,123
*    Spartan U.S. Equity Index Fund                                         214,430             8,450,668
*    Fidelity Freedom Income Fund                                            36,759               407,660
*    Fidelity Freedom 2000 Fund                                             506,647             5,944,741
*    Fidelity Freedom 2010 Fund                                             137,719             1,793,106
*    Fidelity Freedom 2020 Fund                                             261,286             3,401,937
*    Fidelity Freedom 2030 Fund                                             187,874             2,432,967
*    Fidelity Freedom 2040 Fund                                              68,880               520,731
*    Fidelity Select Health Care                                              9,057             1,068,850
*    Fidelity Select Technology                                              23,612             1,418,864
*    Fidelity Utilities Growth                                                3,097               102,009
*    Fidelity Financial Services                                              8,381               963,160
*    Fidelity Select Natural Resources                                       10,452               149,673
*    Fidelity Select Cyclical Industries                                     19,051               306,158
*    Loans to Plan participants (545 loans with interest rates
        ranging from 5% to 11%)                                                  --             3,492,494
**   Gartner, Inc. Class A Common Stock                                     359,144             4,061,919
                                                                                         ----------------
                                                                                         $    180,401,631
                                                                                         ================


* Party in interest - affiliate of Plan custodian

** Party in interest - Sponsor of the Plan

See accompanying report of independent registered public accounting firm.

                                       9



                                   SIGNATURES

      The Plan. Pursuant to the requirements of the Securities Exchange Act of
      1934, the trustees (or other persons who administer the employee benefit
      plan) have duly caused this annual report to be signed on its behalf by
      the undersigned hereunto duly authorized.

                          Gartner, Inc. Savings and Investment Plan

Date:  June 25, 2004      By: / s / Christopher Lafond
                              --------------------------------------

                              Name: Christopher Lafond

                              Title: Administrative Committee Chairman

                                     Executive Vice President,

                                     Chief Financial Officer

                                     Gartner, Inc.

                                       1



                                  EXHIBIT INDEX

Exhibit Number                 Description of Exhibits

      23*               Independent Auditors' Consent, KPMG LLP.

----------------

* Filed herewith.

                                       11