1945-46 SLL

The 1945-46 St Lawrence League champion was Cardinal Corsairs. They participated in the 1945-46 Ottawa District Senior Playoffs. They defeated Long Sault League champion Mille Roches in the first round of the playoffs two games to none. They lost to Lower Ottawa Valley League champion Buckingham Abbotts 2 games to none in the quarter final round.

Teams

 * Cardinal
 * Spencerville
 * Morrisburg
 * Prescott

Semifinals

 * Cardinal beat Morrisburg 18 goals to 6 (5:4, 13:2)
 * Spencerville beat Prescott 14 goals to 13 (7:3, 7:10)

Final

 * Cardinal - Spencerville 2:1 on series (W:L, 1:3, 8:4)