1941-42 Eastern Canada Memorial Cup Playoffs

Semi Finals
Best of 5

Oshawa Generals beat Ottawa St Patricks 3 wins to none.

Series awarded to Montreal.

Montreal Junior Royals beat Halifax Canadiens.

Final
Best of 7

Oshawa Generals beat Montreal Junior Royals 4 wins to none.

Oshawa Generals advanced to the 1941-42 Memorial Cup Final.