These are the 1975 Sutherland Cup playoffs.
Champions
- Metro - Bramalea Blues
- Mid-Ontario - Owen Sound Greys
- Golden Horseshoe - Hamilton Red Wings
- Western - London-Glencoe Squires
- Niagara District - Niagara Falls Canucks
- Central - Oakville Blades
- Waterloo-Wellington - Waterloo Siskins
Playdowns
Quarter-final
- Oakville Blades defeated Niagara Falls Canucks
- NF 6 - Oak 4 (2-1 NF)
- Oak 7 - NF 4
- Oak 8 - NF 3 (Final Game)
- Waterloo Siskins defeated Owen Sound Greys 4-games-to-none
- Wat 8 - OS 5 (Gm 4)
- Hamilton Red Wings defeated London-Glencoe Squires 4-games-to-1
- Ham 4 - LG 3 (Gm 5)
Semi-final
- Oakville Blades defeated Hamilton Red Wings 4-games-to-3
- Oak 3 - Ham 2
- Ham 6 - Oak 4
- Ham 6 - Oak 5
- Oak - Ham
- Oak 4 - Ham 2
- Ham 3 -Oak 2
- Oak - Ham
- Bramalea Blues defeated Waterloo Siskins 4-games-to-1
- Bram 4 - Wat 2
- Bram 14 - Wat 1
- Bram 6 - Wat 5
- Wat 5 - Bram 3
- Bram 7 - Wat 3
Final
- Bramalea Blues defeated Oakville Blades