SECURITIES AND EXCHANGE COMMISSION


                             Washington, D.C. 20549


                                    FORM 8-K


                                 CURRENT REPORT


     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


                                January 20, 2004
                Date of Report (Date of earliest event reported)


                              TRUSTMARK CORPORATION
             (Exact name of registrant as specified in its charter)


  Mississippi                       0-3683                       64-0471500
(State or other            (Commission File Number)             (IRS Employer
 jurisdiction of                                             Identification No.)
 incorporation)



                             248 East Capitol Street
                                Jackson, MS 39201
          (Address, including zip code, of principal executive office)


                                 (601) 208-5111
              (Registrant's telephone number, including area code)






Item 12.  Results of Operations and Financial Condition

On January 20, 2004, Trustmark Corporation issued a press release announcing its
financial  results for the period ended December 31, 2003. This press release is
attached as Exhibit 99.1 to this report and incorporated herein by reference.

Included  in  Note  3 to  the  Consolidated  Financial  Information  is  certain
information  that  has been  prepared  in  accordance  with  Generally  Accepted
Accounting  Principles,  except that the financial  effects of Trustmark's early
retirement  program  during the first  quarter have been  excluded  (net income,
earnings  per  share and  selected  financial  ratios).  We have  provided  this
information because Management believes it is useful for investors to be able to
evaluate  the impact of this  one-time  charge on these line items,  and thus be
able to compare these results to the periods presented on a consistent basis.

The following exhibit is filed as part of this Form 8-K:

     Exhibit No.       Description
     ----------        -----------
     99.1              Press release announcing financial results for the period
                       ended December 31, 2003














                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                              TRUSTMARK CORPORATION


BY:   /s/ Richard G. Hickson                BY:   /s/ Zach L. Wasson
      ----------------------                      ------------------
      Richard G. Hickson                          Zach L. Wasson
      Chairman of the Board, President            Treasurer (Principal
      & Chief Executive Officer                   Financial Officer)

DATE: January 20, 2004                      DATE: January 20, 2004








                                  EXHIBIT INDEX




99.1     Press release announcing financial results for the period ended
         December 31, 2003.