1949-50 Eastern Canada Allan Cup Playoffs

Quarter Final
Best of 3

Toronto Marlboros beat Sault Ste Marie Greyhounds 2 games to none.

Semi Finals
Best of 7

Toronto Marlboros beat Cornwall Calumets 4 games to none.

Sherbrooke Saints beat Sydney Millionaires 4 games to none.

Final
Best of 7

Toronto Marlboros beat Sherbrooke Saints 4 games to 2.

Toronto Marlboros advanced to the 1949-50 Allan Cup Final.