1939-40 Manitoba Senior A Playoffs

For the 1939-40 season, the Manitoba Amateur Hockey Association had the winners of the Winnipeg and District Senior Hockey League and Winnipeg Military Hockey League playoff in the best of 3 series, for the Provincial Senior Championship, the Pattison Cup.

League champions

 * Winnipeg and District Senior Hockey League: Winnipeg Clark's Cruisers
 * Winnipeg Military Hockey League: Royal Winnipeg Rifles

Final
Best of 3

Royal Winnipeg Rifles won the Pattison Cup and advanced to the 1939-40 Western Canada Allan Cup Playoffs Manitoba Senior AAA Hockey History