| Tournament details | |
|---|---|
| Venue(s) | Keystone Centre (Brandon, Manitoba) Agridome (Regina, Saskatchewan) |
| Dates | May 4–11, 1980 |
| Teams | 3 |
| Final positions | |
| Champions | Cornwall Royals (QMJHL) (2nd title) |
The 1980 Memorial Cup occurred May 4–11 at the Keystone Centre in Brandon, Manitoba and at the Agridome in Regina, Saskatchewan. It was the 62nd annual Memorial Cup competition and determined the major junior ice hockey champion of the Canadian Hockey League (CHL). Participating teams were the winners of the Ontario Major Junior Hockey League, Quebec Major Junior Hockey League and Western Hockey League which were the Peterborough Petes, Cornwall Royals and Regina Pats. Cornwall won their second Memorial Cup, defeating Peterborough in the final game.