| Tournament details | |
|---|---|
| Venue(s) | Kitchener Memorial Auditorium Complex (Kitchener, Ontario) |
| Dates | May 3–11, 1975 |
| Teams | 3 |
| Final positions | |
| Champions | Toronto Marlboros (OMJHL) (7th title) |
The 1975 Memorial Cup took place May 3–11 at the Kitchener Memorial Auditorium Complex in Kitchener, Ontario. It was the 57th annual Memorial Cup competition, organized by the Canadian Amateur Hockey Association (CAHA) to determine the champion of major junior A ice hockey. Participating teams were the winners of the Ontario Major Junior Hockey League, Quebec Major Junior Hockey League and Western Hockey League which were the Toronto Marlboros, Sherbrooke Castors and New Westminster Bruins. Toronto won their 7th Memorial Cup, defeating New Westminster in the final game.