AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 12, 2002
                                                      REGISTRATION NO. 333-52182
===============================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                         POST-EFFECTIVE AMENDMENT NO. 2
                                       TO
                                    FORM S-4
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                               FIFTH THIRD BANCORP
             (Exact name of registrant as specified in its charter)

                                                          
           OHIO                             6711                   31-0854434
(State or other jurisdiction of  (Primary Standard Industrial    (I.R.S. Employer
 incorporation or organization)   Classification Code Number)   Identification No.)


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

                   FIFTH THIRD CENTER, CINCINNATI, OHIO 45263
                                 (513) 579-5300
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

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

                             PAUL L. REYNOLDS, ESQ.
                               FIFTH THIRD BANCORP
                            38 FOUNTAIN SQUARE PLAZA
                             CINCINNATI, OHIO 45263
                                  (513)579-5300
                               (513)744-6757 (FAX)
                (Name, address, including zip code and telephone
               number, including area code, of agent for service)

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

                          COPIES OF COMMUNICATIONS TO:

                            Richard G. Schmalzl, Esq.
                              H. Samuel Lind, Esq.
                           Graydon Head & Ritchey LLP
                             1900 Fifth Third Center
                                511 Walnut Street
                             Cincinnati, Ohio 45202
                                  (513)621-6464
                               (513)651-3836 (Fax)

         APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF THE SECURITIES TO
THE PUBLIC: The merger of Old Kent Financial Corporation with and into Fifth
Third Financial Corporation, a wholly-owned subsidiary of Fifth Third Bancorp,
was consummated on April 2, 2001. Fifth Third is hereby amending this
Registration Statement to deregister 5,896,801 shares of common stock, no par
value, which were issuable to the shareholders of Old Kent in connection with
the merger of Old Kent with and into Fifth Third Financial Corporation.

         If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. [ ]

         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [ ]

         If this Form is a post-effective amendment filed pursuant to Rule
462(d) under the Securities Act, check the following box and list the
registration statement number of the earlier effective registration statement
for the same offering. [ ]

         This Post-Effective Amendment No. 2 to Registration Statement on Form
S-4 (Reg. No. 333-52182) shall hereafter become effective in accordance with the
provisions of Section 8(c) of the Securities Act of 1933.

================================================================================






                          DEREGISTRATION OF SECURITIES

         In accordance with the undertaking of Fifth Third Bancorp set forth in
the registration statement on Form S-4 (File No. 333-52182), declared effective
on January 17, 2001, Fifth Third is filing this Post-Effective Amendment No. 2
to deregister an aggregate of 5,896,801 shares of its common stock, no par
value, previously registered under the Securities Act of 1933 pursuant to the
registration statement, issuable to the shareholders of Old Kent Financial
Corporation in connection with the merger of Old Kent with and into Fifth Third
Financial Corporation.

         Pursuant to the registration statement on Form S-4, 113,000,000 shares
of common stock, 7,250 shares of Series D perpetual preferred stock and 2,000
shares of Series E perpetual preferred stock were registered. These shares were
registered pursuant to the registration statement in order to be issued: (i) to
the shareholders of Old Kent in connection with the merger and (ii) upon the
exercise of options granted to certain directors, officers and employees of Old
Kent under its stock plans. Upon the consummation of the merger, Fifth Third
issued a total of 103,716,638 of these shares of common stock and all of the
perpetual preferred stock to the shareholders of Old Kent. Fifth Third then
amended the registration statement by filing Post-Effective Amendment No.1 on
Form S-8 to Form S-4 to register 3,386,561 of the shares of common stock to be
issued upon the exercise of the options. Therefore, in accordance with the
undertaking mentioned above, Fifth Third hereby deregisters the remaining
5,896,801 shares of Fifth Third common stock previously registered pursuant to
the registration statement.

                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant has duly caused this Post-Effective Amendment No. 2 to Registration
Statement No. 333-52182 to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Cincinnati, State of Ohio, on March 11, 2002.

                                  FIFTH THIRD BANCORP

                                  By:  /s/ GEORGE A. SCHAEFER, JR.
                                       -------------------------------
                                       George A. Schaefer, Jr.
                                       President and Chief  Executive Officer

         Pursuant to the requirements of the Securities Act of 1933, this
Post-Effective Amendment No. 2 to Registration Statement No. 333-52182 has been
signed by the following persons in the capacities and on the dates indicated.


Principal Executive Officer:


/s/ GEORGE A. SCHAEFER, JR.                 Date:    March 11, 2002
------------------------------------
George A. Schaefer, Jr.
President and Chief Executive Officer




Principal Financial Officer:


/s/ NEAL E. ARNOLD                          Date:    March 11, 2002
------------------------------------
Neal E. Arnold
Chief Financial Officer and Executive
Vice President

Principal Accounting Officer:


/s/ DAVID DEBRUNNER                         Date:    March 11, 2002
------------------------------------
David Debrunner
Controller

Directors of the Company:

/s/ DARRYL F. ALLEN*                        Date:    March 11, 2002
------------------------------------
Darryl F. Allen

/s/ JOHN F. BARRETT *                       Date:    March 11, 2002
------------------------------------
John F. Barrett

/s/ THOMAS B. DONNELL *                     Date:   March 11, 2002
---------------------------
Thomas B. Donnell

/s/ RICHARD T. FARMER*                      Date:    March 11, 2002
------------------------------------
Richard T. Farmer

/s/ JOSEPH H. HEAD, JR. *                   Date:    March 11, 2002
------------------------------------
Joseph H. Head, Jr.


                                            Date:
------------------------------------
James P. Hackett


                                            Date:
------------------------------------
Joan R. Herschede




/s/ ALLEN M. HILL*                          Date:    March 11, 2002
------------------------------------
Allen M. Hill

/s/ WILLIAM G. KAGLER*                      Date:    March 11, 2002
------------------------------------
William G. Kagler

/s/ JAMES D. KIGGEN*                        Date:    March 11, 2002
------------------------------------
James D. Kiggen

/s/ ROBERT L. KOCH, II *                    Date:    March 11, 2002
------------------------------------
Robert L. Koch, II

/s/ MITCHEL D. LIVINGSTON*                  Date:   March 11, 2002
------------------------------------
Mitchel D. Livingston, Ph.D.

                                            Date:
------------------------------------
Hendrick G. Meijer

/s/ ROBERT B. MORGAN*                       Date:    March 11, 2002
------------------------------------
Robert B. Morgan

/s/ DAVID E. REESE*                         Date:    March 11, 2002
------------------------------------
David E. Reese

                                            Date:
------------------------------------
James E. Rogers

/s/ GEORGE A. SCHAEFER, JR.                 Date:    March 11, 2002
------------------------------------
George A. Schaefer, Jr.



/s/ JOHN J. SCHIFF, JR.*                    Date:    March 11, 2002
------------------------------------
John J. Schiff, Jr.

/s/ DONALD B. SCHACKELFORD *                Date:   March 11, 2002
------------------------------------
Donald B. Schackelford

/s/ DENNIS J. SULLIVAN, JR. *               Date:    March 11, 2002
------------------------------------
Dennis J. Sullivan, Jr.



/s/ DUDLEY S. TAFT *                        Date:    March 11, 2002
------------------------------------
Dudley S. Taft

/s/ THOMAS W. TRAYLOR *                     Date:   March 11, 2002
------------------------------------
Thomas W. Traylor

                                            Date:
------------------------------------
David J. Wagner



*By: /s/ GEORGE A. SCHAEFER, JR.
     -------------------------------
         George A. Schaefer, Jr.
         as attorney-in-fact pursuant to
         a power of attorney previously
         filed