Minnesota-Ontario League[]
The Warroad Lakers won the league title but were ineligible for these playoffs because they were an American team.
Semi Final[]
Best of 5
Fort Frances Canadians beat Dryden Rockets 3 wins to none.
Final[]
Best of 5
- Kenora 6 Fort Frances 2
- Kenora 5 Fort Frances 3
- Fort Frances 3 Kenora 2
- Fort Frances 3 Kenora 0
- Kenora 6 Fort Frances 3
Kenora Thistles beat Fort Frances Canadians 3 wins to 2.
League champion[]
Regional Final[]
Best of 5
Kenora Thistles beat Red Rock 3 wins to 2.
Kenora Thistles advanced to the 1957-58 Western Canada Intermediate Playoffs.