2005 Seattle Mariners season Game log June

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| June 1 | Blue Jays | 3–0 | Chacín (5–4) | 24815 | 22–30 |
| June 3 | Devil Rays | 6–1 | Sele (4–5) | 35344 | 22–31 |
| June 4 | Devil Rays | 6–5 | Báez (4–1) | 32742 | 23–31 |
| June 5 | Devil Rays | 6–5 | Orvella (0–1) | 40004 | 24–31 |
| June 7 | @ Marlins | 4–3 | Mecir (1–1) | 20519 | 25–31 |
| June 8 | @ Marlins | 5–4 | Meche (5–4) | 19313 | 25–31 |
| June 9 | @ Marlins | 8–0 | Beckett (7–4) | 16069 | 26–32 |
| June 10 | @ Nationals | 9–3 | Hasegawa (1–2) | 28704 | 26–33 |
| June 11 | @ Nationals | 2–1 | Putz (1–2) | 39108 | 26–34 |
| June 12 | @ Nationals | 3–2 | Franklin (2–8) | 37170 | 26–35 |
| June 14 | Phillies | 3–1 | Lieber (8–5) | 26818 | 27–35 |