1958-59 Thunder Bay Intermediate Playoffs

League champion
North Shore League: Marathon Mercurys

Independent teams

 * Fort Frances Canadians
 * Kenora Thistles
 * Dryden Rockets

Note: All these teams played in the Minnesota-Ontario Hockey League.

Quarter Final
Best of 5

Fort Frances Canadians beat Dryden Rockets

Semi Final
Best of 7


 * Fort Frances 4 Kenora 3
 * Fort Frances 4 Kenora 0
 * Kenora 4 Fort Frances 0
 * Fort Frances 4 Kenora 0
 * Kenora beat Fort Frances
 * Fort Frances 7 Kenora 1

Fort Frances Canadians beat Kenora Thistles 4 wins to 2.

Final
Best of 5'

Fort Frances Canadians beat Marathon Mercurys 3 wins to 1, 1 tie.

Fort Frances Canadians advanced to the 1958-59 Western Canada Intermediate Playoffs.