<ARTICLE>          5
<LEGEND>

                      FINANCIAL DATA SCHEDULE

 THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
 CONSOLIDATED FINANCIAL STATEMENTS FOR THE NINE MONTHS ENDED SEPTEMBER
 30, 2000 OF WAUSAU-MOSINEE PAPER CORPORATION AND IS QUALIFIED IN ITS
 ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

                                      
 <PERIOD-TYPE>                                 9-MOS
 <FISCAL-YEAR-END>                       DEC-31-2000
 <PERIOD-END>                            SEP-30-2000
 <CASH>                                        4,436
 <SECURITIES>                                      0
 <RECEIVABLES>                                97,032
 <ALLOWANCES>                                 13,340
 <INVENTORY>                                 154,810
 <CURRENT-ASSETS>                            266,971
 <PP&E>                                    1,185,372
 <DEPRECIATION>                              510,551
 <TOTAL-ASSETS>                              976,200
 <CURRENT-LIABILITIES>                       131,184
 <BONDS>                                     251,002
 <COMMON>                                    170,682
 <PREFERRED-MANDATORY>                             0
 <PREFERRED>                                       0
 <OTHER-SE>                                  213,052
 <TOTAL-LIABILITY-AND-EQUITY>                976,200
 <SALES>                                     729,505
 <TOTAL-REVENUES>                            729,505
 <CGS>                                       643,541
 <TOTAL-COSTS>                               715,365
 <OTHER-EXPENSES>                              2,317
 <LOSS-PROVISION>                                  0
 <INTEREST-EXPENSE>                           11,390
 <INCOME-PRETAX>                                 433
 <INCOME-TAX>                                    810
 <INCOME-CONTINUING>                            (377)
 <DISCONTINUED>                                    0
 <EXTRAORDINARY>                                   0
 <CHANGES>                                         0
 <NET-INCOME>                                   (377)
 <EPS-BASIC>                                   (0.01)
 <EPS-DILUTED>                                 (0.01)