Astros Roster & Staff
Transactions
| Date | Transaction |
| 06/29/18 | Houston Astros sent RHP Joe Smith on a rehab assignment to Corpus Christi Hooks. |
| 06/29/18 | Houston Astros signed RHP Brett Daniels. |
| 06/29/18 | Houston Astros recalled Cionel Perez from Corpus Christi Hooks. |
| 06/29/18 | Houston Astros placed SS Carlos Correa on the 10-day disabled list retroactive to June 26, 2018. Lower back soreness. |
| 06/28/18 | Houston Astros recalled AJ Reed from Fresno Grizzlies. |
| 06/28/18 | Houston Astros placed 1B Yuli Gurriel on the paternity list. |
| 06/26/18 | Houston Astros reassigned RHP Dean Deetz to the minor leagues. |
| 06/26/18 | Houston Astros optioned RHP Dean Deetz to Fresno Grizzlies. |
| 06/23/18 | Houston Astros sent RHP Brady Rodgers on a rehab assignment to Buies Creek Astros. |
| 06/22/18 | Houston Astros signed OF Alex McKenna. |
| 06/22/18 | Houston Astros signed RHP Jayson Schroeder. |
| 06/20/18 | Houston Astros sent RHP Brady Rodgers on a rehab assignment to Tri-City ValleyCats. |
| 06/19/18 | Houston Astros signed RHP Miguel Figueroa. |
| 06/19/18 | Houston Astros signed OF Scott Schreiber. |
| 06/19/18 | Houston Astros signed RHP Brett Conine. |
| 06/19/18 | Houston Astros signed RHP R.J. Freure. |
| 06/19/18 | Houston Astros signed LHP Jonathan Bermudez. |
| 06/18/18 | Houston Astros optioned LHP Reymin Guduan to Fresno Grizzlies. |
| 06/16/18 | Houston Astros signed RHP Riley Cabral. |
| 06/16/18 | Houston Astros signed RHP Devin Conn. |
| 06/16/18 | Houston Astros signed RHP Joey Gonzalez. |
| 06/16/18 | Houston Astros signed RHP Joey Gonzalez. |
| 06/15/18 | Reymin Guduan roster status changed by Houston Astros. |
| 06/15/18 | Houston Astros recalled Tyler White from Fresno Grizzlies. |
| 06/14/18 | Houston Astros signed C Alex Holderbach. |
| 06/14/18 | Houston Astros signed RHP Shawn Dubin. |
| 06/14/18 | Houston Astros signed SS Michael Wielansky. |
| 06/14/18 | Houston Astros signed SS Trey Dawson. |
| 06/14/18 | Houston Astros signed OF Logan Mattix. |
| 06/14/18 | Houston Astros signed OF Austin Dennis. |
| 06/13/18 | Houston Astros signed SS Jeremy Pena. |
| 06/13/18 | Houston Astros signed RHP Cody Deason. |
| 06/13/18 | Houston Astros signed RHP Austin Hansen. |
| 06/13/18 | Houston Astros signed RHP Mark Moclair. |
| 06/13/18 | Houston Astros signed C Juan Paulino. |
| 06/13/18 | Houston Astros signed OF Seth Beer. |
| 06/13/18 | Houston Astros signed RHP Layne Henderson. |
| 06/13/18 | Houston Astros signed OF Marty Costes. |
| 06/13/18 | Houston Astros signed SS David Hensley. |
| 06/13/18 | Houston Astros signed OF Chandler Taylor. |
| 06/13/18 | Houston Astros signed C Cesar Salazar. |
| 06/10/18 | Houston Astros sent C Tim Federowicz outright to Fresno Grizzlies. |
| 06/10/18 | Houston Astros placed RHP Joe Smith on the 10-day disabled list retroactive to June 7, 2018. Right elbow soreness. |
| 06/10/18 | Houston Astros recalled LHP Reymin Guduan from Fresno Grizzlies. |
| 06/08/18 | Houston Astros activated C Brian McCann from the 10-day disabled list. |
| 06/08/18 | Houston Astros designated C Tim Federowicz for assignment. |
| 06/06/18 | Houston Astros optioned 3B J.D. Davis to Fresno Grizzlies. |
| 06/06/18 | Houston Astros activated RF Josh Reddick from the 10-day injured list. |
| 06/03/18 | Houston Astros sent RF Josh Reddick on a rehab assignment to Corpus Christi Hooks. |
| 06/03/18 | Houston Astros optioned LF Derek Fisher to Fresno Grizzlies. |
| 06/01/18 | Houston Astros signed free agent OF Juan Ramirez to a minor league contract. |