2008 Houston Astros season Game log July

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| July 12 | @ Nationals | 6–4 | Balester (1–2) | 30682 | 43–51 |
| July 13 | @ Nationals | 5–0 | Pérez (2–7) | 31463 | 44–51 |
| July 18 | Cubs | 2–1 | Howry (3–3) | 42368 | 45–51 |
| July 19 | Cubs | 4–1 | Zambrano (10–4) | 43129 | 46–51 |
| July 20 | Cubs | 9–0 | Backe (6–10) | 41161 | 46–52 |
| July 21 | Pirates | 9–2 | Yates (4–2) | 34624 | 46–53 |
| July 22 | Pirates | 8–2 | Cassel (1–1) | 33996 | 46–54 |
| July 23 | Pirates | 8–7 | Geary (2–2) | 36091 | 46–55 |
| July 25 | @ Brewers | 3–1 | Parra (9–3) | 41357 | 47–55 |
| July 26 | @ Brewers | 6–4 | Brocail (4–5) | 43489 | 47–56 |
| July 27 | @ Brewers | 11–6 | Suppan (5–7) | 31565 | 48–56 |
| July 28 | Reds | 5–4 | Cueto (7–10) | 31783 | 49–56 |
| July 29 | Reds | 6–2 | Arroyo (9–8) | 34015 | 50–56 |
| July 30 | Reds | 9–5 | Rodríguez (6–4) | 30272 | 50–57 |