Astros Roster & Staff
Transactions
| Date | Transaction |
| 07/31/20 | Houston Astros signed free agent RHP Fernando Rodney to a minor league contract and invited him to spring training. |
| 07/31/20 | Houston Astros signed free agent LHP Hunter Peck to a minor league contract. |
| 07/30/20 | Houston Astros invited non-roster RHP Humberto Castellanos to spring training. |
| 07/29/20 | Baltimore Orioles traded RHP Hector Velazquez to Houston Astros for Player To Be Named Later. |
| 07/28/20 | Houston Astros placed RHP Joe Biagini on the 10-day injured list retroactive to July 27, 2020. Right shoulder soreness. |
| 07/28/20 | Houston Astros selected the contract of RHP Andre Scrubb from Astros Alternate Training Site. |
| 07/27/20 | Houston Astros recalled Nivaldo Rodriguez from Astros Alternate Training Site. |
| 07/27/20 | Houston Astros selected the contract of Brandon Bielak from Astros Alternate Training Site. |
| 07/27/20 | Houston Astros optioned 1B Taylor Jones to Astros Alternate Training Site. |
| 07/27/20 | Houston Astros placed RHP Justin Verlander on the 10-day injured list retroactive to July 25, 2020. Right forearm strain. |
| 07/26/20 | Brandon Bailey changed number to . |
| 07/25/20 | Houston Astros placed 2B Aledmys Diaz on the 10-day injured list. Right groin strain. |
| 07/25/20 | Houston Astros recalled Taylor Jones from Astros Alternate Training Site. |
| 07/23/20 | Houston Astros recalled RHP Enoli Paredes from Corpus Christi Hooks. |
| 07/23/20 | Houston Astros recalled Garrett Stubbs from Round Rock Express. |
| 07/23/20 | Houston Astros placed RHP Austin Pruitt on the 10-day injured list. Hairline fracture in his right elbow. |
| 07/23/20 | Houston Astros recalled Jack Mayfield from Round Rock Express. |
| 07/23/20 | Houston Astros selected the contract of RHP Brandon Bailey from Astros Alternate Training Site. |
| 07/23/20 | Houston Astros recalled LHP Blake Taylor from Round Rock Express. |
| 07/23/20 | Houston Astros placed RHP Rogelio Armenteros on the 10-day injured list. Bone spurs in right elbow. |
| 07/23/20 | Houston Astros recalled RHP Cristian Javier from Round Rock Express. |
| 07/23/20 | Houston Astros placed RHP Brad Peacock on the 10-day injured list. |
| 07/14/20 | Houston Astros invited non-roster RHP Humberto Castellanos to spring training. |
| 07/14/20 | Houston Astros placed RHP Joe Smith on the restricted list. |
| 07/14/20 | Houston Astros invited non-roster RHP Carlos Sanabria to spring training. |
| 07/14/20 | Houston Astros invited non-roster RHP Ronel Blanco to spring training. |
| 07/12/20 | Houston Astros placed RHP Jose Urquidy on the 10-day injured list. |
| 07/12/20 | Houston Astros placed OF Yordan Alvarez on the 10-day injured list. |