1970-71 Manitoba Senior A Playoffs

Only the St. Boniface Mohawks and Kenora Thistles registered in Senior A with the Manitoba Amateur Hockey Association. The other teams in the Manitoba Senior Hockey League registered in Intermediate. The MAHA ordered that the 2 playoff for the Provincial Championship, Pattison Cup, in the best of nine game series.

St Boniface Mohawks won the Pattison Cup and advanced to the 1970-71 Western Canada Allan Cup Playoffs Manitoba Senior AAA Hockey History