1948-49 Thunder Bay Senior Playoffs

Independent teams

 * Kenora Thistles (played in Manitoba-Thunder Bay League)
 * Port Arthur Bearcats (played in Manitoba-Thunder Bay League)
 * Fort Frances Canadians (played in Northern Amateur League)

''Note: Fort William had no team because there was no arena to play in. Kenora and Port Arthur played games against each other and the Winnipeg Nationals in the 1948-49 Manitoba-Thunder Bay League season.''

Semi Final
best of 5

Fort Frances Canadians beat Kenora Thistles 3 wins to 2.

Final
Best of 7

Fort Frances Canadians beat Port Arthur Bearcats 4 wins to 3, 1 tie.

Fort Frances Canadians advanced to the 1948-49 Western Canada Allan Cup Playoffs.