1942-43 Northern Ontario Junior B Playoffs

These were the playoffs to decide the 1942-43 Northern Ontario Hockey Association Junior B champion:

Final
Round Robin


 * Copper Cliff 6 Sault Ste. Marie 2
 * Copper Cliff 8 North Bay 3
 * Sault Ste. Marie 5 North Bay 3
 * Copper Cliff 5 Sault Ste. Marie 3

Balance of series cancelled.

North
Won by Timmins Canadiens

Regional Final
Best of 3


 * Timmins 3 Copper Cliff 2
 * Timmins 5 Copper Cliff 2

Timmins Canadiens beat Copper Cliff Redmen 2 wins to none.

Timmins Canadiens advanced to the 1943 NOHA-OHA Junior B Championship.