1991 Toronto Blue Jays season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 1 | @ Rangers | 3 - 0 | Key (4-1) | 33439 | 12-10 |
| May 2 | @ Royals | 3 - 1 | Appier (1-4) | 22896 | 13-10 |
| May 3 | @ Royals | 5 - 1 | Davis (2-2) | 20809 | 14-10 |
| May 4 | @ Royals | 6 - 5 | Boucher (0-2) | 22628 | 14-11 |
| May 5 | @ Royals | 3 - 0 | Gordon (1-2) | 22588 | 15-11 |
| May 7 | Rangers | 3 - 2 | Key (4-2) | 44622 | 15-12 |
| May 8 | Rangers | 4 - 2 | Ryan (3-3) | 43211 | 16-12 |
| May 9 | White Sox | 2 - 0 | Pérez (1-2) | 47236 | 17-12 |
| May 10 | White Sox | 5 - 3 (12) | Fraser (0-1) | 50198 | 17-13 |