| Tournament details | |
|---|---|
| Venue(s) | Memorial Coliseum Portland, Oregon |
| Dates | May 7–14, 1983 |
| Teams | 4 |
| Host team | Portland Winter Hawks (WHL) |
| Final positions | |
| Champions | Portland Winter Hawks (WHL) (1st title) |
| Tournament statistics | |
| Games played | 8 |
The 1983 Memorial Cup was held May 7–14 at the Memorial Coliseum in Portland, Oregon. It was the 65th annual Memorial Cup competition and determined the major junior ice hockey champion of the Canadian Hockey League (CHL). Participating teams were the host team Portland Winter Hawks along with the Oshawa Generals, Verdun Juniors and Lethbridge Broncos who had won the Ontario Hockey League (OHL), Quebec Major Junior Hockey League (QMJHL) and Western Hockey League (WHL) championships respectively. Portland won their first Memorial Cup, defeating Oshawa in the final game.
1983 was the first time the Memorial Cup tournament featured four teams; it had previously involved three teams playing in a neutral host city since the round robin tournament format was adopted in 1972. The Winter Hawks were the first team to host the tournament, and the first to both participate and win the title despite failing to capture their league championship; they were eliminated by Lethbridge in the WHL finals. The Winter Hawks were the first American team to win the Memorial Cup.