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                                                      Registration No. 333-15575


                       SECURITIES AND EXCHANGE COMMISSION

                            WASHINGTON, D. C. 20549

                         ------------------------------
                         Post Effective Amendment No. 1
                                       TO
                                    FORM S-4

                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933

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

                          THE COLONIAL BANCGROUP, INC.

             (Exact name of Registrant as specified in its charter)

                                                                          
         Delaware                          6711                                      63-0661573
(State of Incorporation)          (Primary Standard Industrial               (I.R.S. Employer Identification No.)
Classification Code Number)

    One Commerce Street, Suite 800                                                   (334) 240-5000
      Montgomery, Alabama 36104                                                      (Telephone No.)
(Address of principal executive offices)                                           



                --------------------------------------------
                              W. Flake Oakley, IV
                                   Secretary
                              Post Office Box 1108
                           Montgomery, Alabama 36102
                    (Name and address of agent for service)

                                   Copies to:

                           Michael D. Waters, Esquire
                        Miller, Hamilton, Snider & Odom
                         One Commerce Street, Suite 802
                           Montgomery, Alabama 36104

   Approximate date of commencement of proposed sale to the public:  As soon
    as practicable after the effective date of this Registration Statement.

     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. (  )

    
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     The Colonial BancGroup, Inc. ("BancGroup") registered 688,282 shares of
its Common Stock on Form S-4, registration no. 333-15575, pursuant to the
acquisition of D/W Bankshares, Inc., ("D/W"), a Georgia corporation, including
shares of BancGroup Common Stock to be issued pursuant to the exercise of
options of D/W following the merger.  A total of 555,271 shares were issued in
the merger on January 31, 1997 and 33,921 shares will be issued upon the
exercise of options of D/W following the merger.  Pursuant to the undertaking
given by BancGroup in such registration statement in accordance with Regulation
S-K, item 512(a)(3), BancGroup hereby removes 99,090 shares from registration,
which represents the number of shares registered less the number of shares
issued in the merger and the number of shares reserved to be issued pursuant to
D/W options.

         BancGroup will file a post effective amendment no. 2 on Form S-8 to
this registration statement respecting the issuance of 33,921 shares of
BancGroup Common Stock pursuant to D/W options assumed in the merger and
registered on this Form S-4 registration statement.



                                   SIGNATURE


     Pursuant to Regulation S-K, item 512(a)(3) and SEC Rule 478(a)(4), the
undersigned registrant hereby executes this post effective amendment to its
registration statement on Form S-4 to remove from registration certain shares
not issued and has caused this registration statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of
Montgomery, Alabama, on the 13th day of February, 1997.

                                    THE COLONIAL BANCGROUP, INC.
                                    
                                    
                                    
                                    By:      /s/ W. Flake Oakley, IV
                                             -----------------------
                                             W. Flake Oakley, IV
                                             Chief Financial Officer and
                                             Duly authorized agent for
                                             service