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

       Date of Report (Date of earliest event reported): January 19, 2005


                        MAINSOURCE FINANCIAL GROUP, INC.
                   ------------------------------------------
               (Exact Name of Registrant as Specified in Charter)

   INDIANA                        0-12422                     35-1562245
- ---------------            ---------------------        ---------------------
(State or other            (Commission File No.)           (I.R.S. Employer
Jurisdiction of                                         Identification Number)
Incorporation)

         201 NORTH BROADWAY              GREENSBURG, INDIANA    47240
         ---------------------------------------------------------------
         (Address of principal executive offices)             (Zip Code)

                                 (812) 663-0157
              ----------------------------------------------------
              (Registrant's telephone number, including area code)

                                       N/A
             -------------------------------------------------------
          (Former Name or Former Address, if Changed Since Last Report)



Item 2.02.  Results of Operations and Financial Condition

        On January 19, 2005, the Company announced earnings and operating
results for the fourth quarter and year ended December 31, 2004. The news
release is attached as Exhibit 99.1.












                                   SIGNATURES

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

                           MAINSOURCE FINANCIAL GROUP, INC.


                           January 19, 2005

                           /s/ James L. Saner, Sr.
                           -------------------------------------------------
                           James L. Saner, Sr.
                           President and Chief Executive Officer

                           January 19, 2005

                           /s/ Donald A. Benziger
                           -------------------------------------------------
                           Donald A. Benziger
                           Senior Vice President & Chief Financial Officer

                           January 19, 2005

                           /s/ James M. Anderson
                           -------------------------------------------------
                           James M. Anderson
                           Controller & Principal Accounting Officer




                                INDEX TO EXHIBITS

 Exhibit No.   Description
 -----------   -----------

    99.1       MainSource Financial Group News Release