1977 Seattle Mariners season Game log June

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| June 1 | Oakland Athletics | 3-6 | Abbott (2-5) | 14350 | 21-31 |
| June 2 | Oakland Athletics | 0-1 | Pole (2-2) | 10712 | 21-32 |
| June 3 | Cleveland Indians | 1-7 | Jones (0-4) | 19438 | 21-33 |
| June 4 | Cleveland Indians | 5-7 | Kekich (2-1) | 24074 | 21-34 |
| June 5 | Cleveland Indians | 6-1 | Bibby (4-3) | 14167 | 22-34 |
| June 7 | Detroit Tigers | 2-5 | Abbott (2-6) | 10050 | 22-35 |
| June 8 | Detroit Tigers | 3-2 | Hiller (3-6) | 11211 | 23-35 |
| June 9 | Detroit Tigers | 2-1 | Sykes (0-2) | 10840 | 24-35 |
| June 10 | Toronto Blue Jays | 3-4 | Montague (5-4) | 11786 | 24-36 |
| June 11 | Toronto Blue Jays | 4-5 | Romo (3-4) | 21318 | 24-37 |