Reds Roster & Staff
Transactions
| Date | Transaction |
| 07/31/23 | Cincinnati Reds transferred RHP Hunter Greene from the 15-day injured list to the 60-day injured list. Right hip pain. |
| 07/31/23 | Cincinnati Reds reassigned LHP Sam Moll to the minor leagues. |
| 07/31/23 | Oakland Athletics traded LHP Sam Moll and cash to Cincinnati Reds for RHP Joe Boyle. |
| 07/31/23 | Oakland Athletics traded LHP Sam Moll and cash to Cincinnati Reds for RHP Joe Boyle. |
| 07/30/23 | Cincinnati Reds placed 3B Jonathan India on the 10-day injured list retroactive to July 29, 2023. Left foot plantar fascitis. |
| 07/30/23 | Cincinnati Reds recalled OF Stuart Fairchild from Louisville Bats. |
| 07/28/23 | Cincinnati Reds sent RHP Casey Legumina on a rehab assignment to ACL Reds. |
| 07/28/23 | Cincinnati Reds sent RHP Vladimir Gutierrez on a rehab assignment to ACL Reds. |
| 07/28/23 | Cincinnati Reds sent RHP Vladimir Gutierrez on a rehab assignment to ACL Reds. |
| 07/28/23 | Cincinnati Reds sent RHP Casey Legumina on a rehab assignment to ACL Reds. |
| 07/28/23 | Cincinnati Reds sent RHP Vladimir Gutierrez on a rehab assignment to ACL Reds. |
| 07/28/23 | Cincinnati Reds sent RHP Casey Legumina on a rehab assignment to ACL Reds. |
| 07/27/23 | Cincinnati Reds drafted 1B Jack Moss. |
| 07/27/23 | Cincinnati Reds drafted SS Sammy Stafura. |
| 07/27/23 | Cincinnati Reds drafted OF Ethan O'Donnell. |
| 07/27/23 | Cincinnati Reds drafted C Connor Burns. |
| 07/25/23 | Cincinnati Reds sent RHP Tejay Antone on a rehab assignment to ACL Reds. |
| 07/25/23 | Cincinnati Reds signed free agent RHP Gabe Starks to a minor league contract. |
| 07/25/23 | Cincinnati Reds sent RHP Tejay Antone on a rehab assignment to ACL Reds. |
| 07/24/23 | Cincinnati Reds placed C Curt Casali on the 10-day injured list retroactive to July 21, 2023. Left foot contusion. |
| 07/24/23 | Cincinnati Reds activated SS Kevin Newman from the 10-day injured list. |
| 07/24/23 | Cincinnati Reds recalled RHP Daniel Duarte from Louisville Bats. |
| 07/24/23 | Cincinnati Reds optioned RHP Levi Stoudt to Louisville Bats. |
| 07/21/23 | Cincinnati Reds signed free agent C Qyshawn Legito to a minor league contract. |
| 07/21/23 | Cincinnati Reds signed RHP Cole Schoenwetter. |
| 07/19/23 | Cincinnati Reds signed free agent RHP Sebastian Salazar to a minor league contract. |
| 07/19/23 | Cincinnati Reds signed free agent RHP Johan Cabeza to a minor league contract. |
| 07/19/23 | Cincinnati Reds optioned RHP Daniel Duarte to Louisville Bats. |
| 07/19/23 | Cincinnati Reds recalled RHP Levi Stoudt from Louisville Bats. |
| 07/19/23 | Cincinnati Reds optioned RHP Tony Santillan to Louisville Bats. |
| 07/18/23 | Cincinnati Reds recalled RHP Tony Santillan from Louisville Bats. |
| 07/17/23 | Cincinnati Reds placed SS Kevin Newman on the 10-day injured list retroactive to July 14, 2023. Gastritis. |
| 07/17/23 | Cincinnati Reds signed free agent LHP Nick Sando to a minor league contract. |
| 07/17/23 | SS Dominic Pitelli assigned to Cincinnati Reds. |
| 07/17/23 | Cincinnati Reds signed RHP Simon Miller. |
| 07/17/23 | Cincinnati Reds selected the contract of 3B Christian Encarnacion-Strand from Louisville Bats. |
| 07/16/23 | 1B Carter Graham assigned to Cincinnati Reds. |
| 07/16/23 | Cincinnati Reds signed RHP Cody Adcock. |
| 07/16/23 | Cincinnati Reds signed LHP Graham Osman. |
| 07/16/23 | Cincinnati Reds signed free agent RHP Dylan Simmons to a minor league contract. |
| 07/16/23 | Cincinnati Reds signed RHP Ty Floyd. |
| 07/16/23 | Cincinnati Reds signed LHP Hunter Hollan. |
| 07/16/23 | Cincinnati Reds signed LHP Logan Van Treeck. |
| 07/14/23 | Cincinnati Reds signed RHP Rhett Lowder. |
| 07/14/23 | Cincinnati Reds signed RHP Rhett Lowder. |
| 07/11/23 | Cincinnati Reds sent RHP Michael Mariot outright to Louisville Bats. |
| 07/10/23 | Cincinnati Reds sent RHP Ricky Karcher outright to Louisville Bats. |
| 07/10/23 | Cincinnati Reds sent RF Henry Ramos outright to Louisville Bats. |
| 07/09/23 | Cincinnati Reds designated RHP Michael Mariot for assignment. |
| 07/09/23 | Cincinnati Reds activated RHP Ben Lively from the 15-day injured list. |
| 07/08/23 | Cincinnati Reds designated RF Henry Ramos for assignment. |
| 07/08/23 | Cincinnati Reds selected the contract of RHP Michael Mariot from Louisville Bats. |
| 07/08/23 | Cincinnati Reds optioned RHP Tony Santillan to Louisville Bats. |
| 07/06/23 | Cincinnati Reds designated RHP Ricky Karcher for assignment. |
| 07/06/23 | Cincinnati Reds activated RHP Tony Santillan from the 60-day injured list. |
| 07/06/23 | Cincinnati Reds optioned RHP Brett Kennedy to Louisville Bats. |
| 07/04/23 | Cincinnati Reds optioned OF Stuart Fairchild to Louisville Bats. |
| 07/04/23 | Cincinnati Reds selected the contract of RHP Brett Kennedy from Louisville Bats. |
| 07/04/23 | Cincinnati Reds sent RHP Alec Mills outright to Louisville Bats. |
| 07/02/23 | Cincinnati Reds designated RHP Alec Mills for assignment. |
| 07/02/23 | Cincinnati Reds activated RHP Derek Law from the 15-day injured list. |
| 07/02/23 | Cincinnati Reds optioned RHP Eduardo Salazar to Louisville Bats. |
| 07/02/23 | Cincinnati Reds recalled OF Stuart Fairchild from Louisville Bats. |
| 07/01/23 | Cincinnati Reds sent RHP Jake Wong outright to Louisville Bats. |