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):  OCTOBER 21, 2003



                       WAUSAU-MOSINEE PAPER CORPORATION

            (Exact name of registrant as specified in its charter)



         WISCONSIN                  1-13923                   39-0690900
      (State or other          (Commission File              (IRS Employer
      jurisdiction of               Number)                 Identification
      incorporation)                                            Number)


                            1244 KRONENWETTER DRIVE
                            MOSINEE, WI 54455-9099

         (Address of principal executive offices, including Zip Code)

                                (715) 693-4470
              Registrant's telephone number, including area code


                   INFORMATION TO BE INCLUDED IN THE REPORT


ITEM 5.     OTHER EVENTS AND REGULATION FD DISCLOSURE.

            On October 21, 2003, the Company reported net earnings of $6.0
million, or $.12 per share, for the third quarter ended September 30, 2003, as
compared to a net earnings of $7.6 million, or $.15 per share, for the third
quarter of 2002.  Third quarter results included stock incentive charges of
$.01 per share in 2003 and credits of $.02 in 2002.

            Net sales for the third quarter of 2003 were $249.5 million as
compared to $251.1 million in 2002.

ITEM 7.     FINANCIAL STATEMENTS AND EXHIBITS.

         (c)   Exhibits.

               99.1     Press release dated October 21, 2003

ITEM 9.     REGULATION FD DISCLOSURE

            On October 21, 2003, the Company issued a press release announcing
its earnings for the third quarter ended September 30, 2003, a copy of which is
attached hereto as Exhibit 99.1 and incorporated in this Item 9 by reference.

ITEM 12.    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

            On October 21, 2003, the Company issued a press release announcing
its earnings for the third quarter ended September 30, 2003, a copy of which is
attached hereto as Exhibit 99.1 and incorporated in this Item 12 by reference.


                                  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.


                                    WAUSAU-MOSINEE PAPER CORPORATION


Date:  October 21, 2003             By:    SCOTT P. DOESCHER
                                           Scott P. Doescher
                                           Senior Vice President-Finance
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                                 EXHIBIT INDEX
                                      TO
                                   FORM 8-K
                                      OF
                       WAUSAU-MOSINEE PAPER CORPORATION
                            DATED OCTOBER 21, 2003
                 Pursuant to Section 102(d) of Regulation S-T
                        (17 C.F.R. Section 232.102(d))




99.1  PRESS RELEASE DATED OCTOBER 21, 2003

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