1977 Toronto Blue Jays season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 1 | @ Royals | 8–2 | Lemanczyk (2–2) | 34066 | 10–12 |
| May 2 | Brewers | 3–1 | Hargan (1–2) | 17577 | 10–13 |
| May 3 | Brewers | 6–2 | Jefferson (0–2) | 13148 | 10–14 |
| May 4 | Brewers | 10–3 | Slaton (1–2) | 25699 | 11–14 |
| May 5 | Brewers | 9–8 | Castro (3–1) | 12268 | 12–14 |
| May 6 | Twins | 7–2 | Lemanczyk (2–3) | 26355 | 12–15 |
| May 7 | Twins | 4–1 | Hargan (1–3) | 34091 | 12–16 |
| May 8 | Twins | 5–4 | Jefferson (0–3) | 20902 | 12–17 |
| May 9 | Mariners | 10–4 | Thomas (1–4) | 11680 | 13–17 |
| May 10 | Mariners | 9–3 | Montague (3–3) | 13017 | 14–17 |
| May 13 | @ Twins | 4–3 (11) | Willis (1–1) | 9667 | 14–18 |
| May 14 | @ Twins | 13–3 | Singer (2–5) | 10503 | 14–19 |