1948-49 Eastern Canada Allan Cup Playoffs

Quarter Finals
Best of 3

Toronto Marlboros beat North Bay Black Hawks 2 games to none.

Best of 5

Sydney Millionaires beat Pembroke Lumber Kings 3 games to 1.

Semi Final
Best of 5

Toronto Marlboros beat Sydney Millionaires 3 games to 1, 1 tie.

Final
Best of 7

Ottawa Senators beat Toronto Marlboros 4 games to 2.

Ottawa Senators advanced to the 1948-49 Allan Cup Final