As filed with the Securities and Exchange Commission on August 5, 2005

                                                           Registration No. 333-
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                    ---------------------------------------
                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

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

                                GERON CORPORATION
             (Exact Name of Registrant as Specified in Its Charter)

             Delaware                                        75-2287752
  (State or Other Jurisdiction of                         (I.R.S. Employer
  Incorporation or Organization)                       Identification Number)

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

                             230 Constitution Drive
                          Menlo Park, California 94025
         (Addresses of Principal Executive Offices including Zip Codes)

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

                           2002 EQUITY INCENTIVE PLAN
                            (Full Title of the Plan)

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

          Thomas B. Okarma                                   Copy to:
President and Chief Executive Officer                 Alan C. Mendelson, Esq.
          Geron Corporation                            Latham & Watkins LLP
       230 Constitution Drive                         135 Commonwealth Drive
    Menlo Park, California 94025                   Menlo Park, California 94025
           (650) 473-7700                                (650) 328-4600 

          (Name and Address, Including Zip Code, and Telephone Number,
                   Including Area Code, of Agent for Service)

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



--------------------------------------------------------------------------------------------------------------------
                                          CALCULATION OF REGISTRATION FEE
--------------------------------------------------------------------------------------------------------------------
                                                                                    Proposed
                                                                  Proposed          Maximum
                                                Amount            Maximum           Aggregate
                                                to be          Offering Price    Offering Price      Amount of
   Title of Securities to be Registered    Registered (1)(2)   Per Share (3)          (3)         Registration Fee
--------------------------------------------------------------------------------------------------------------------
                                                                                       
Common Stock, $0.001 par value per share,
issuable under the 2002 Equity Incentive
Plan (4)...............................         2,000,000           $10.42         $20,840,000        $2,640.43
------------------------------------------- ------------------ ----------------- ----------------- -----------------
Total..................................         2,000,000           $10.42         $20,840,000        $2,640.43
------------------------------------------- ------------------ ----------------- ----------------- -----------------



(1)  The 2002 Equity Incentive Plan (the "Plan") authorizes the issuance of
     9,579,603 shares of common stock, par value $0.001 per share (the "Common
     Stock"), of Geron Corporation (the "Company"), of which 2,000,000 shares
     are being registered hereunder.

(2)  This registration statement shall also cover any additional shares of
     Common Stock which become issuable under the Plan by reason of any stock
     dividend, stock split, recapitalization or any other similar transaction
     effected without the receipt of consideration which results in an increase
     in the number of the outstanding shares of the Company's Common Stock.

(3)  Estimated solely for the purposes of calculating the registration fee
     pursuant to Rule 457(h) and (c) under the Securities Act of 1933, as
     amended (the "Securities Act of 1933"), and is based on the average
     ($10.42) of the high ($10.54) and low ($10.29) sales price of the Common
     Stock, as reported on the Nasdaq National Market on August 2, 2005.

(4)  Each share of Common Stock being registered hereunder, if issued prior to
     the termination the Company of its Rights Agreement dated as of July 20,
     2001, will include one preferred share purchase right. Prior to the
     occurrence of certain events, the preferred share purchase rights will not
     be exercisable or evidenced separately from the Common Stock.

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Proposed sale to take place as soon after the effective date of the registration
           statement as options granted under the Plan are exercised.

                                  Total Pages 6
                             Exhibit Index on Page 4




                      REGISTRATION OF ADDITIONAL SECURITIES

         On July  3,  2002,  Geron  Corporation,  a  Delaware  corporation  (the
"Company")  filed  a  Registration  Statement  on  Form  S-8,  Registration  No.
333-91916 (the "First Registration Statement"), with the Securities and Exchange
Commission  relating to an aggregate of 7,000,000 shares of the Company's common
stock, par value $0.001 per share (the "Common  Stock"),  to be offered and sold
under the 2002  Equity  Incentive  Plan (the  "Plan").  On October 7, 2004,  the
Company filed a Registration  Statement on Form S-8, Registration No. 333-119601
(the  "Second  Registration  Statement"),   with  the  Securities  and  Exchange
Commission  relating to an additional  579,603  shares of Common Stock  issuable
under the Plan.  The  contents of the First  Registration  Statement  and Second
Registration  Statement  are  incorporated  by  reference  in this  Registration
Statement.  The Company is hereby registering an additional  2,000,000 shares of
Common Stock  issuable  under the Plan,  none of which has been issued as of the
date of this Registration Statement.


Item 8.  Exhibits

         A list of exhibits filed with this Registration Statement is set forth
in the Exhibit Index on page 4 and is incorporated herein by reference.


                                       2




                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Menlo Park, State of California, on August 5, 2005.

                                   GERON CORPORATION

                                   By:    /s/ David L. Greenwood           
                                          ---------------------------------
                                          David L. Greenwood
                                          Executive Vice President and
                                          Chief Financial Officer


                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENT, that each person whose signature appears
below constitutes and appoints Thomas B. Okarma and David L. Greenwood, and each
of them, his true and lawful attorneys-in-fact and agents, each with full power
of substitution and resubstitution, for him and in his name, place and stead, in
any and all capacities, to sign any and all amendments (including post-effective
amendments) to this registration statement, and to file the same, with all
exhibits thereto and other documents in connection therewith, with the
Commission, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in order to effectuate the same as fully, to
all intents and purposes, as he might or could do in person, hereby ratifying
and confirming all that each of said attorneys-in-fact and agents, or any of
them, may lawfully do or cause to be done by virtue hereof.

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated as of August 5, 2005.


Signature                     Title                                   Date
-------------------------------------------------------------------------------

/s/ Thomas B. Okarma      President, Chief Executive Officer     August 5, 2005
------------------------  and Director
Thomas B. Okarma          (Principal Executive Officer)

/s/ David L. Greenwood    Executive Vice President and Chief     August 5, 2005
------------------------  Financial Officer (Principal
David L. Greenwood        Financial and Accounting Officer)

/s/ Alexander E. Barkas   Director                               August 5, 2005
------------------------
Alexander E. Barkas


/s/ Edward V. Fritzky     Director                               August 5, 2005
------------------------
Edward V. Fritzky


/s/ Charles J. Homcy      Director                               August 5, 2005
------------------------
Charles J. Homcy


                          Director                               August 5, 2005
------------------------
Thomas D. Kiley


/s/ John P. Walker        Director                               August 5, 2005
------------------------
John P. Walker


/s/ Patrick J. Zenner     Director                               August 5, 2005
------------------------
Patrick J. Zenner


                                       3



                                  EXHIBIT INDEX

EXHIBIT                                                                    PAGE
-------                                                                    ----
 4.1+     2002 Equity Incentive Plan                                        N/A
 4.2++    Rights Agreement dated as of July 20, 2001, between Geron         N/A
          Corporation and U.S. Stock Transfer Corporation, as Rights Agent
 5.1      Opinion of Latham & Watkins LLP                                    5
23.1      Consent of Latham & Watkins LLP (included in Exhibit 5.1)
23.2      Consent of Ernst & Young LLP, Independent Registered Public
          Accounting Firm.                                                   6
24.1      Powers of Attorney (included on the signature page to this
          Registration Statement)                                            3

(+)  Incorporated by reference to Exhibit 10.5 to the Company's Annual Report on
     Form 10-K for the fiscal year ended December 31, 2003 filed on February 27,
     2004.


(++) Incorporated by reference to Exhibit 4.1 to the Company's Current Report on
     Form 8-K filed on July 23, 2001.



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