1991 Toronto Blue Jays season Game log September

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| September 1 | @ Yankees | 4 - 2 | MacDonald (3-2) | 25105 | 73-59 |
| September 2 | Orioles | 5 - 4 (12) | Olson (3-5) | 50314 | 74-59 |
| September 3 | Orioles | 8 - 4 | Wells (13-10) | 50299 | 74-60 |
| September 4 | Orioles | 3 - 1 | Milacki (8-8) | 50303 | 75-60 |
| September 5 | @ Indians | 13 - 1 | Nagy (8-12) | 5666 | 76-60 |
| September 6 | @ Indians | 7 - 4 | Otto (1-6) | 14533 | 77-60 |
| September 7 | @ Indians | 4 - 1 | Swindell (8-14) | 17830 | 78-60 |
| September 8 | @ Indians | 11 - 5 | King (5-10) | 13071 | 79-60 |
| September 10 | Mariners | 5 - 4 | Stottlemyre (13-7) | 50196 | 79-61 |