Reds Roster & Staff
Transactions
| Date | Transaction |
| 06/27/09 | Cincinnati Reds optioned Adam Rosales to Louisville Bats. |
| 06/27/09 | Cincinnati Reds recalled RHP Homer Bailey from Louisville Bats. |
| 06/26/09 | Josh Garton assigned to Billings Mustangs from Cincinnati Reds. |
| 06/25/09 | Cincinnati Reds signed OF Josh Garton. |
| 06/23/09 | Jacob Wiley assigned to GCL Reds from Cincinnati Reds. |
| 06/23/09 | SS Billy Hamilton assigned to GCL Reds from Cincinnati Reds. |
| 06/23/09 | Cincinnati Reds activated 1B Joey Votto from the 15-day disabled list. |
| 06/23/09 | RF Carter Morrison assigned to GCL Reds from Cincinnati Reds. |
| 06/23/09 | Cincinnati Reds placed C Wilkin Castillo on the 15-day disabled list retroactive to June 21, 2009. Torn labrum in right shoulder. |
| 06/23/09 | Chase Ware assigned to GCL Reds from Cincinnati Reds. |
| 06/23/09 | Blair Carson assigned to GCL Reds from Cincinnati Reds. |
| 06/21/09 | Cincinnati Reds signed Blair Carson. |
| 06/21/09 | Cincinnati Reds signed Jacob Wiley. |
| 06/21/09 | Cincinnati Reds signed Chase Ware. |
| 06/21/09 | Cincinnati Reds signed Billy Hamilton. |
| 06/21/09 | Cincinnati Reds signed Carter Morrison. |
| 06/20/09 | Cincinnati Reds optioned Matt Maloney to Louisville Bats. |
| 06/20/09 | Cincinnati Reds recalled C Wilkin Castillo from Louisville Bats. |
| 06/20/09 | Cincinnati Reds transferred 3B Edwin Encarnacion from the 15-day disabled list to the 60-day disabled list. broken left wrist |
| 06/20/09 | Cincinnati Reds reassigned LHP Matt Maloney to the minor leagues. |
| 06/20/09 | Cincinnati Reds selected the contract of 2B Danny Richar from Louisville Bats. |
| 06/20/09 | Cincinnati Reds placed SS Alex Gonzalez on the 15-day disabled list retroactive to June 19, 2009. Bone chips in his right elbow. |
| 06/18/09 | Trey Manz assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | Derrick Lowery assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | RHP Adian Kummet assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | Donnie Joseph assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | Jason Braun assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | RHP Forest Cannon assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | Cincinnati Reds signed IF Shane Carlson. |
| 06/18/09 | Shane Carlson assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | Joey Votto assigned to Sarasota Reds from Cincinnati Reds. |
| 06/18/09 | Chris Richburg assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | Jamie Walczak assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | LF William Stramp assigned to Billings Mustangs from Cincinnati Reds. |
| 06/18/09 | Mark Serrano assigned to Billings Mustangs from Cincinnati Reds. |
| 06/17/09 | Cincinnati Reds signed IF Chris Richburg. |
| 06/17/09 | Cincinnati Reds signed RHP Mark Serrano. |
| 06/17/09 | Cincinnati Reds signed RHP Jamie Walczak. |
| 06/17/09 | Cincinnati Reds signed LF William Stramp. |
| 06/17/09 | Cincinnati Reds recalled Josh Roenicke from Louisville Bats. |
| 06/17/09 | Cincinnati Reds placed RHP Mike Lincoln on the 15-day disabled list retroactive to June 13, 2009. bulging disc in neck |
| 06/17/09 | Cincinnati Reds signed RHP Forest Cannon. |
| 06/17/09 | Cincinnati Reds signed RHP Jason Braun. |
| 06/17/09 | Cincinnati Reds signed LHP Donnie Joseph. |
| 06/17/09 | Cincinnati Reds signed RHP Adian Kummet. |
| 06/17/09 | Cincinnati Reds signed IF Derrick Lowery. |
| 06/17/09 | Cincinnati Reds signed C Trey Manz. |
| 06/14/09 | Cincinnati Reds signed SS Oliver Santos. |
| 06/06/09 | Cincinnati Reds recalled LHP Matt Maloney from Louisville Bats. |
| 06/06/09 | Cincinnati Reds optioned Wilkin Castillo to Louisville Bats. |
| 06/02/09 | Cincinnati Reds placed RHP Edinson Volquez on the 15-day disabled list. Tendinitis in his right elbow. |
| 06/02/09 | Cincinnati Reds recalled Jared Burton from Louisville Bats. |
| 06/01/09 | Cincinnati Reds optioned Jared Burton to Louisville Bats. |
| 06/01/09 | Cincinnati Reds activated RHP Edinson Volquez from the 15-day disabled list. |