1991 Toronto Blue Jays season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 11 | Red Sox | 9 - 6 | Key (12-7) | 50297 | 62-50 |
| August 12 | Red Sox | 11 - 8 | Ward (5-4) | 50305 | 62-51 |
| August 13 | @ Brewers | 5 - 4 | Henke (0-2) | 22996 | 62-52 |
| August 14 | @ Brewers | 5 - 3 | Wells (12-8) | 19193 | 62-53 |
| August 15 | @ Brewers | 4 - 1 | Plesac (1-5) | 24519 | 63-53 |
| August 16 | @ Tigers | 5 - 2 | Key (12-8) | 43186 | 63-54 |
| August 17 | @ Tigers | 7 - 5 | Aldred (0-2) | 46634 | 64-54 |
| August 18 | @ Tigers | 4 - 2 | Kaiser (0-1) | 48724 | 65-54 |
| August 20 | Brewers | 3 - 1 | Bosio (9-9) | 50311 | 66-54 |
| August 21 | Brewers | 3 - 0 | Key (12-9) | 50306 | 66-55 |