| Tournament details | |
|---|---|
| Venue(s) | Aitken University Centre, Fredericton, New Brunswick |
| Teams | 6 |
| Final positions | |
| Champions | Quebec–Trois-Rivières Patriotes (4th title) |
| Runner-up | St. Francis Xavier X-Men |
| Third place | Alberta Golden Bears |
| Fourth place | New Brunswick Varsity Reds |
| Tournament statistics | |
| Games played | 8 |
| MVP | Éric Desjardins (Quebec–Trois-Rivières) |
The 2003 CIS Men's University Cup Hockey Tournament (41st annual) was held at the Aitken University Centre in Fredericton, New Brunswick. The New Brunswick Varsity Reds served as tournament host.