1930-31 OHA Senior Season

This is the 1930-31 season of the Ontario Hockey Association's Senior A series:

Playoffs
Semi final opponents were arranged by draws.

Semi Finals
2 games total goals

'''Hamilton Tigers beat Toronto Nationals 3 goals to none.

Port Colborne Sailors beat Toronto Marlboros 4 goals to 2.

Final
2 games total goals

Hamilton Tigers beat Port Colborne Sailors 4 goals to 3.

Senior B
Windsor MicMacs

Senior A - B Final
2 games total goals

Hamilton Tigers beat Windsor MicMacs 5 goals to 3.

Hamilton Tigers advanced to the 1930-31 Eastern Canada Allan Cup Playoffs.