Astros Roster & Staff
Transactions
| Date | Transaction |
| 07/31/23 | Houston Astros designated LHP Blake Taylor for assignment. |
| 07/31/23 | Houston Astros claimed RHP Jake Cousins off waivers from Milwaukee Brewers. |
| 07/31/23 | Houston Astros optioned RHP Brandon Bielak to Sugar Land Space Cowboys. |
| 07/31/23 | Houston Astros optioned RHP Jake Cousins to Sugar Land Space Cowboys. |
| 07/31/23 | Houston Astros recalled LHP Matt Gage from Sugar Land Space Cowboys. |
| 07/29/23 | Houston Astros activated RHP Kendall Graveman. |
| 07/29/23 | Houston Astros activated RHP Kendall Graveman. |
| 07/29/23 | Houston Astros optioned RHP Seth Martinez to Sugar Land Space Cowboys. |
| 07/28/23 | Chicago White Sox traded RHP Kendall Graveman to Houston Astros for C Korey Lee. |
| 07/28/23 | Chicago White Sox traded RHP Kendall Graveman to Houston Astros for C Korey Lee. |
| 07/27/23 | C Korey Lee roster status changed by Houston Astros. |
| 07/26/23 | Houston Astros activated 1B Yordan Alvarez from the 10-day injured list. |
| 07/26/23 | Houston Astros activated 2B Jose Altuve from the 10-day injured list. |
| 07/26/23 | Houston Astros optioned SS David Hensley to Sugar Land Space Cowboys. |
| 07/26/23 | Houston Astros optioned OF Bligh Madris to Sugar Land Space Cowboys. |
| 07/25/23 | Houston Astros signed free agent RHP Alejandro Torres to a minor league contract. |
| 07/25/23 | Houston Astros signed free agent 3B Xavier Casserilla to a minor league contract. |
| 07/25/23 | Houston Astros sent RHP José Urquidy on a rehab assignment to Corpus Christi Hooks. |
| 07/23/23 | Houston Astros optioned RHP Joel Kuhnel to Sugar Land Space Cowboys. |
| 07/23/23 | Houston Astros recalled LHP Parker Mushinski from Sugar Land Space Cowboys. |
| 07/19/23 | Houston Astros signed free agent RHP Kelly Austin to a minor league contract. |
| 07/18/23 | Houston Astros signed free agent RHP Hudson Leach to a minor league contract. |
| 07/18/23 | Houston Astros signed RHP Alonzo Tredwell. |
| 07/18/23 | Houston Astros signed C Will Bush. |
| 07/18/23 | Houston Astros signed C Garret Guillemette. |
| 07/18/23 | Houston Astros signed SS Pascanel Ferreras. |
| 07/18/23 | Houston Astros signed OF Anthony Huezo. |
| 07/18/23 | Houston Astros signed OF Cam Fisher. |
| 07/18/23 | Houston Astros signed SS Chase Jaworsky. |
| 07/18/23 | Houston Astros signed RHP Derek True. |
| 07/17/23 | Houston Astros signed free agent RHP Miguel Balza to a minor league contract. |
| 07/15/23 | Houston Astros signed RHP Joey Dixon. |
| 07/15/23 | Houston Astros signed LHP Colby Langford. |
| 07/15/23 | Houston Astros signed RHP James Hicks. |
| 07/15/23 | Houston Astros signed 3B Austin Deming. |
| 07/15/23 | Houston Astros signed 2B Ryan Johnson. |
| 07/15/23 | Houston Astros signed OF Nehomar Ochoa Jr.. |
| 07/15/23 | Houston Astros signed free agent SS Anthony Sherwin to a minor league contract. |
| 07/15/23 | Houston Astros signed SS Brice Matthews. |
| 07/15/23 | Houston Astros signed RHP Jake Bloss. |
| 07/15/23 | Houston Astros signed RHP Jackson Nezuh. |
| 07/15/23 | Houston Astros signed RHP Ethan Pecko. |
| 07/15/23 | Houston Astros signed SS Jeron Williams. |
| 07/14/23 | Houston Astros sent RHP José Urquidy on a rehab assignment to Sugar Land Space Cowboys. |
| 07/14/23 | Houston Astros sent 1B Yordan Alvarez on a rehab assignment to Sugar Land Space Cowboys. |
| 07/14/23 | Houston Astros signed free agent RHP Ben Petschke to a minor league contract. |
| 07/14/23 | Houston Astros sent RHP José Urquidy on a rehab assignment to Sugar Land Space Cowboys. |
| 07/08/23 | Houston Astros recalled RHP Joel Kuhnel from Sugar Land Space Cowboys. |
| 07/08/23 | Houston Astros optioned RHP Ronel Blanco to Sugar Land Space Cowboys. |
| 07/06/23 | Houston Astros placed 2B Jose Altuve on the 10-day injured list retroactive to July 4, 2023. Left oblique discomfort. |
| 07/06/23 | Houston Astros recalled RHP Ronel Blanco from Sugar Land Space Cowboys. |
| 07/06/23 | Houston Astros optioned LHP Parker Mushinski to Sugar Land Space Cowboys. |
| 07/06/23 | Houston Astros recalled SS David Hensley from Sugar Land Space Cowboys. |
| 07/05/23 | Houston Astros optioned LHP Parker Mushinski to Sugar Land Space Cowboys. |
| 07/03/23 | Houston Astros signed free agent C Angel Marte to a minor league contract. |
| 07/03/23 | Houston Astros signed free agent SS Yariell Almanzar to a minor league contract. |
| 07/03/23 | Houston Astros optioned RHP Shawn Dubin to Sugar Land Space Cowboys. |
| 07/03/23 | Houston Astros recalled RHP Brandon Bielak from Sugar Land Space Cowboys. |
| 07/02/23 | Houston Astros signed free agent RHP Dionel Villalobos to a minor league contract. |
| 07/02/23 | Houston Astros optioned RHP Ronel Blanco to Sugar Land Space Cowboys. |
| 07/02/23 | Houston Astros recalled LHP Parker Mushinski from Sugar Land Space Cowboys. |