| Tournament details | |
|---|---|
| Venue(s) | Kitchener Memorial Auditorium Kitchener, Ontario |
| Dates | May 12–19, 1984 |
| Teams | 4 |
| Host team | Kitchener Rangers (OHL) |
| Final positions | |
| Champions | Ottawa 67's (OHL) (1st title) |
| Tournament statistics | |
| Games played | 8 |
The 1984 Memorial Cup occurred May 12–19 at the Kitchener Memorial Auditorium in Kitchener, Ontario. It was the 66th annual Memorial Cup competition and determined the major junior ice hockey champion of the Canadian Hockey League (CHL). Participating teams were the host team Kitchener Rangers, as well as the winners of the Ontario Hockey League, Quebec Major Junior Hockey League and Western Hockey League which were the Ottawa 67's, Laval Voisins and Kamloops Jr. Oilers. Ottawa won their first Memorial Cup, defeating Kitchener in the final game.