Astros Roster & Staff
Transactions
| Date | Transaction |
| 01/16/26 | Houston Astros invited non-roster RHP Sam Carlson to spring training. |
| 01/16/26 | Houston Astros invited non-roster 2B Riley Unroe to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Logan VanWey to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Anthony Maldonado to spring training. |
| 01/16/26 | C Carlos Pérez roster status changed by Houston Astros. |
| 01/16/26 | Houston Astros invited non-roster RHP Peter Lambert to spring training. |
| 01/16/26 | Houston Astros invited non-roster C Collin Price to spring training. |
| 01/16/26 | Houston Astros invited non-roster OF Lucas Spence to spring training. |
| 01/16/26 | Houston Astros invited non-roster C Garret Guillemette to spring training. |
| 01/16/26 | Houston Astros invited non-roster C Will Bush to spring training. |
| 01/16/26 | Houston Astros invited non-roster RF Kellen Strahm to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Michael Knorr to spring training. |
| 01/16/26 | Houston Astros invited non-roster SS Edwin Díaz to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Hudson Leach to spring training. |
| 01/16/26 | Houston Astros invited non-roster CF Joseph Sullivan to spring training. |
| 01/16/26 | Houston Astros invited non-roster 2B Jax Biggers to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Amos Willingham to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Cody Bolton to spring training. |
| 01/16/26 | Houston Astros invited non-roster LF Taylor Trammell to spring training. |
| 01/16/26 | Houston Astros invited non-roster C Walker Janek to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Christian Roa to spring training. |
| 01/16/26 | Houston Astros invited non-roster C John Garcia to spring training. |
| 01/16/26 | Houston Astros invited non-roster RHP Alimber Santa to spring training. |
| 01/15/26 | Houston Astros signed free agent OF Jack Valbrune to a minor league contract. |
| 01/15/26 | Houston Astros signed free agent SS Randy Arias to a minor league contract. |
| 01/15/26 | Houston Astros signed free agent C Fraimy Sanchez to a minor league contract. |
| 01/15/26 | Houston Astros signed free agent SS Albert Fermin to a minor league contract. |
| 01/15/26 | Houston Astros signed free agent OF Brayan Mendez to a minor league contract. |
| 01/15/26 | Houston Astros signed free agent SS Sebastian Mendez to a minor league contract. |
| 01/15/26 | Houston Astros signed free agent RHP Maximiliano Villanueva to a minor league contract. |
| 01/15/26 | Houston Astros signed free agent OF Imanol Feliz to a minor league contract. |
| 01/13/26 | Houston Astros signed free agent RF Kellen Strahm to a minor league contract. |
| 01/12/26 | Houston Astros signed free agent 2B Riley Unroe to a minor league contract. |
| 01/09/26 | New York Yankees claimed RHP Kaleb Ort off waivers from Houston Astros. |
| 01/06/26 | Houston Astros signed free agent 3B James Nelson to a minor league contract. |
| 01/02/26 | Houston Astros signed free agent RHP Tatsuya Imai. |
| 01/02/26 | Houston Astros designated RHP Kaleb Ort for assignment. |