Cardinals Roster & Staff
Transactions
| Date | Transaction |
| 07/31/23 | St. Louis Cardinals recalled LHP Zack Thompson from Memphis Redbirds. |
| 07/30/23 | RHP Adam Kloffenstein roster status changed by St. Louis Cardinals. |
| 07/30/23 | SS Thomas Saggese roster status changed by St. Louis Cardinals. |
| 07/30/23 | RHP Tekoah Roby roster status changed by St. Louis Cardinals. |
| 07/30/23 | St. Louis Cardinals traded LHP Jordan Montgomery and RHP Chris Stratton to Texas Rangers for LHP John King, RHP Tekoah Roby and SS Thomas Saggese. |
| 07/30/23 | St. Louis Cardinals traded LHP Jordan Montgomery and RHP Chris Stratton to Texas Rangers for LHP John King, RHP Tekoah Roby and SS Thomas Saggese. |
| 07/30/23 | St. Louis Cardinals traded LHP Jordan Montgomery and RHP Chris Stratton to Texas Rangers for LHP John King, RHP Tekoah Roby and SS Thomas Saggese. |
| 07/30/23 | St. Louis Cardinals traded LHP Jordan Montgomery and RHP Chris Stratton to Texas Rangers for LHP John King, RHP Tekoah Roby and SS Thomas Saggese. |
| 07/30/23 | St. Louis Cardinals traded RHP Jordan Hicks to Toronto Blue Jays for RHP Adam Kloffenstein and RHP Sem Robberse. |
| 07/30/23 | St. Louis Cardinals traded RHP Jordan Hicks to Toronto Blue Jays for RHP Adam Kloffenstein and RHP Sem Robberse. |
| 07/30/23 | St. Louis Cardinals traded RHP Jordan Hicks to Toronto Blue Jays for RHP Adam Kloffenstein and RHP Sem Robberse. |
| 07/30/23 | St. Louis Cardinals traded LHP Jordan Montgomery and RHP Chris Stratton to Texas Rangers for LHP John King, RHP Tekoah Roby and SS Thomas Saggese. |
| 07/29/23 | St. Louis Cardinals sent SS Tommy Edman on a rehab assignment to Memphis Redbirds. |
| 07/28/23 | St. Louis Cardinals optioned LHP Andrew Suárez to Memphis Redbirds. |
| 07/28/23 | St. Louis Cardinals recalled LHP Matthew Liberatore from Memphis Redbirds. |
| 07/26/23 | St. Louis Cardinals released RHP Ryan Tepera. |
| 07/24/23 | St. Louis Cardinals activated RHP Adam Wainwright from the 15-day injured list. |
| 07/24/23 | St. Louis Cardinals optioned C Iván Herrera to Memphis Redbirds. |
| 07/24/23 | St. Louis Cardinals optioned LHP Zack Thompson to Memphis Redbirds. |
| 07/24/23 | St. Louis Cardinals selected the contract of LHP Andrew Suárez from Memphis Redbirds. |
| 07/23/23 | St. Louis Cardinals released RHP Jake Walsh. |
| 07/23/23 | St. Louis Cardinals selected the contract of 2B Taylor Motter from Memphis Redbirds. |
| 07/23/23 | St. Louis Cardinals optioned SS José Fermín to Memphis Redbirds. |
| 07/22/23 | St. Louis Cardinals activated RHP Drew VerHagen from the 15-day injured list. |
| 07/22/23 | St. Louis Cardinals optioned RHP Kyle Leahy to Memphis Redbirds. |
| 07/21/23 | C Sammy Hernandez roster status changed by St. Louis Cardinals. |
| 07/21/23 | St. Louis Cardinals traded LHP Génesis Cabrera to Toronto Blue Jays for C Sammy Hernandez. |
| 07/21/23 | St. Louis Cardinals traded LHP Génesis Cabrera to Toronto Blue Jays for C Sammy Hernandez. |
| 07/20/23 | St. Louis Cardinals sent RHP Drew VerHagen on a rehab assignment to Springfield Cardinals. |
| 07/20/23 | St. Louis Cardinals designated RHP Ryan Tepera for assignment. |
| 07/20/23 | St. Louis Cardinals activated LF Tyler O'Neill from the 60-day injured list. |
| 07/19/23 | RHP Jacob Barnes assigned to St. Louis Cardinals. |
| 07/19/23 | St. Louis Cardinals signed free agent RHP Casey Lawrence to a minor league contract. |
| 07/17/23 | St. Louis Cardinals signed OF Travis Honeyman. |
| 07/17/23 | St. Louis Cardinals signed RHP Jacob Odle. |
| 07/17/23 | St. Louis Cardinals designated LHP Génesis Cabrera for assignment. |
| 07/17/23 | St. Louis Cardinals signed C Graysen Tarlow. |
| 07/17/23 | St. Louis Cardinals signed free agent RHP Ryan Tepera. |
| 07/17/23 | St. Louis Cardinals signed free agent 1B Ross Friedrick to a minor league contract. |
| 07/17/23 | St. Louis Cardinals signed RHP Tyler Bradt. |
| 07/16/23 | St. Louis Cardinals signed RHP Jason Savacool. |
| 07/16/23 | St. Louis Cardinals signed 1B William Sullivan. |
| 07/16/23 | St. Louis Cardinals activated C Andrew Knizner from the 10-day injured list. |
| 07/16/23 | St. Louis Cardinals signed LHP Quinn Mathews. |
| 07/16/23 | St. Louis Cardinals signed SS Dakota Harris. |
| 07/16/23 | St. Louis Cardinals signed OF Brayden Jobert. |
| 07/16/23 | St. Louis Cardinals signed free agent C Chase Adkison to a minor league contract. |
| 07/16/23 | St. Louis Cardinals signed 3B Trey Paige. |
| 07/16/23 | St. Louis Cardinals signed RHP Christian Worley. |
| 07/16/23 | St. Louis Cardinals signed LHP Ixan Henderson. |
| 07/16/23 | St. Louis Cardinals signed SS Tre Richardson. |
| 07/16/23 | St. Louis Cardinals signed RHP Hunter Kublick. |
| 07/16/23 | St. Louis Cardinals signed OF Zach Levenson. |
| 07/16/23 | St. Louis Cardinals signed RHP Charles Harrison. |
| 07/16/23 | St. Louis Cardinals signed free agent OF Kade Kretzschmar to a minor league contract. |
| 07/16/23 | St. Louis Cardinals optioned 1B Luken Baker to Memphis Redbirds. |
| 07/16/23 | St. Louis Cardinals optioned RHP James Naile to Memphis Redbirds. |
| 07/15/23 | St. Louis Cardinals signed OF Chase Davis. |
| 07/15/23 | St. Louis Cardinals recalled RHP James Naile from Memphis Redbirds. |
| 07/07/23 | St. Louis Cardinals placed SS Tommy Edman on the 10-day injured list. Right wrist inflammation. |
| 07/07/23 | St. Louis Cardinals recalled SS José Fermín from Memphis Redbirds. |
| 07/06/23 | St. Louis Cardinals optioned LHP Matthew Liberatore to Memphis Redbirds. |
| 07/06/23 | St. Louis Cardinals selected the contract of RHP Kyle Leahy from Memphis Redbirds. |
| 07/05/23 | St. Louis Cardinals placed RHP Adam Wainwright on the 15-day injured list. Right shoulder strain. |
| 07/05/23 | CF Óscar Mercado elected free agency. |
| 07/05/23 | St. Louis Cardinals placed C Andrew Knizner on the 10-day injured list. Right groin area injury. |
| 07/05/23 | St. Louis Cardinals optioned RHP James Naile to Memphis Redbirds. |
| 07/05/23 | St. Louis Cardinals recalled RHP Dakota Hudson from Memphis Redbirds. |
| 07/05/23 | St. Louis Cardinals recalled LHP Zack Thompson from Memphis Redbirds. |
| 07/05/23 | St. Louis Cardinals recalled C Iván Herrera from Memphis Redbirds. |
| 07/04/23 | St. Louis Cardinals signed free agent RHP Guanchi Martinez to a minor league contract. |
| 07/04/23 | St. Louis Cardinals sent LF Tyler O'Neill on a rehab assignment to Memphis Redbirds. |
| 07/03/23 | St. Louis Cardinals designated CF Óscar Mercado for assignment. |
| 07/03/23 | St. Louis Cardinals signed free agent RHP Chen-Wei Lin to a minor league contract. |
| 07/03/23 | St. Louis Cardinals recalled 1B Luken Baker from Memphis Redbirds. |
| 07/02/23 | St. Louis Cardinals placed RHP Drew VerHagen on the 15-day injured list. Right hip impingement. |
| 07/02/23 | St. Louis Cardinals recalled LHP JoJo Romero from Memphis Redbirds. |
| 07/02/23 | Memphis Redbirds recalled RHP Dakota Hudson from St. Louis Cardinals. |
| 07/01/23 | St. Louis Cardinals recalled RHP Dakota Hudson from Memphis Redbirds. |