| Number: | 31 |
| Type: | Grey Cup |
| Date: | November 27, 1943 |
| Stadium: | Varsity Stadium |
| City: | Toronto |
| Visitor Name: | Winnipeg RCAF Bombers |
| Home Name: | Hamilton Flying Wildcats |
| Visitor Colour: | Winnipeg RCAF Bombers |
| Home Colour: | Hamilton Flying Wildcats |
| Visitor Coach: | Red Threlfall |
| Home Coach: | Brian Timmis |
| Visitor Record: | 6–0 |
| Home Record: | 8–1–1 |
| Visitor1: | 7 |
| Visitor2: | 0 |
| Visitor3: | 6 |
| Visitor4: | 1 |
| Home1: | 18 |
| Home2: | 0 |
| Home3: | 3 |
| Home4: | 2 |
| Attendance: | 16,423 |
The 31st Grey Cup was played on November 27, 1943, before 16,423 fans at Varsity Stadium at Toronto. The Hamilton Flying Wildcats defeated the Winnipeg RCAF Bombers 23–14.
Both teams wore red and white jerseys and one team had to wear gold and blue uniforms. Hamilton wore the Bombers traditional gold and blue while Winnipeg was allowed to keep its red jerseys.