1977 Seattle Mariners season Game log June

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| June 23 | @ Kansas City Royals | 8-6 | Littell (5-3) | 13520 | 32-41 |
| June 24 | @ Milwaukee Brewers | 1-7 | Montague (5-5) | 11625 | 32-42 |
| June 25 | @ Milwaukee Brewers | 8-3 | Haas (4-5) | 19572 | 33-42 |
| June 26 | @ Milwaukee Brewers | 6-8 | Romo (5-5) | 19699 | 33-43 |
| June 27 | @ Chicago White Sox | 4-10 | Pole (4-4) | 16026 | 33-44 |
| June 28 | @ Chicago White Sox | 4-10 | Montague (5-6) | 8365 | 33-45 |
| June 29 | @ Chicago White Sox | 3-1 | Wood (1-2) | 15415 | 34-45 |