1945-46 Northern Ontario Junior Playoffs

Independent teams

 * Porcupine Combines (played in Porcupine Mines League)
 * Copper Cliff Redmen (played in Nickel Belt League)

Final
Best of 5

Copper Cliff Redmen beat Porcupine Combines 3 wins to 1.

Copper Cliff Redmen advanced to the 1945-46 Eastern Canada Memorial Cup Playoffs.