1942-43 Eastern Canada Allan Cup Playoffs

Champions
Note: RCAF stood for Royal Canadian Air Force.

Quarter Final
Best of 5

Toronto RCAF Flyers beat Sudbury Tigers 3 games to none.

Semi Finals
Best of 5

Ottawa Commandos beat Toronto RCAF Flyers 3 games to 1.

Best of 5

Ottawa RCAF Flyers beat Halifax RCAF 3 games to 2.

Final
Best of 5

Ottawa Commandos beat Ottawa RCAF Flyers 3 games to none, 1 tie.

Ottawa Commandos advanced to the 1942-43 Allan Cup Final.