1944-45 Eastern Canada Memorial Cup Playoffs

Champions

 * Northern Ontario: Porcupine Combines
 * Ontario: St Michaels College Majors
 * Ottawa: Ottawa St Patricks
 * Quebec: Montreal Junior Royals
 * Maritimes: Moncton Bruins

Quarter Final
Best of 3

Montreal Junior Royals beat Ottawa St Patricks 2 wins to none.

Semi Finals
One series was defaulted by the Moncton Bruins since they could not arrange a financial guarantee for the Montreal Junior Royals to travel east.

Best of 5

St. Michaels College Majors beat Porcupine Combines 3 wins to none.

Final
Best of 7

St Michaels College Majors beat Montreal Junior Royals 4 wins to 2.

St Michaels College Majors advanced to the 1944-45 Memorial Cup Final.