 |
Player | Position | Former Team | New Team | Transaction date | Notes | |
| 1. | Ankiel, Rick | OF | WSH | HOU | 1/17/13 | Minor league contract | |
| 2. | Backe, Brandon | RP | HOU | --- | --- | Released | |
| 3. | Banks, Josh | RP | HOU | SF | 1/17/11 | Minor league contract | |
| 4. | Bedard, Erik | SP | PIT | HOU | 1/21/13 | Minor league contract | |
| 5. | Bixler, Brian | SS | HOU | NYM | 11/16/12 | Minor league contract | |
| 6. | Boone, Aaron | 3B | HOU | --- | --- | Announced retirement 2/23/10 | |
| 7. | Brocail, Doug | RP | HOU | --- | --- | Retired | |
| 8. | Corporan, Carlos | C | HOU | HOU | 11/29/11 | Minor league contract | |
| 9. | Coste, Chris | C | HOU | NYM | 12/03/09 | One-year contract | |
| 10. | Erstad, Darin | OF | HOU | --- | --- | --- | |
| 11. | Geary, Geoff | RP | HOU | TEX | 12/16/09 | Minor League contract | |
| 12. | Gonzalez, Edgar | SP | HOU | HOU | 11/20/12 | Minor league contract | |
| 13. | Romero, Alex | OF | ARI | HOU | 12/08/09 | Minor League contract | |
| 14. | Sadler, Billy | RP | HOU | --- | --- | Minor League free agent | |
| 15. | Sadowski, Ryan | SP | HOU | --- | --- | Signed with Korea Lotte Giants | |
| 16. | Shelton, Chris | IF | SEA | HOU | 12/08/09 | Minor League contract | |
| 17. | Sullivan, Cory | OF | HOU | PHI | 2/24/11 | Minor league contract | |
| 18. | Thurston, Joe | 2B | MIA | HOU | 11/13/11 | Signs Minor league deal | |
| 19. | Valdez, Jose | RP | HOU | HOU | 11/21/12 | Minor league contract | |
| 20. | Veras, Jose | RP | MIL | HOU | 12/21/12 | One-year contract | |
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