Marlins Roster & Staff
Transactions
| Date | Transaction |
| 01/26/23 | Miami Marlins sent LHP Daniel Castano outright to Jacksonville Jumbo Shrimp. |
| 01/25/23 | Miami Marlins invited non-roster C Santiago Chávez to spring training. |
| 01/25/23 | Miami Marlins invited non-roster LHP Jefry Yan to spring training. |
| 01/25/23 | Miami Marlins invited non-roster RHP Eury Pérez to spring training. |
| 01/25/23 | Miami Marlins invited non-roster RHP Bryan Hoeing to spring training. |
| 01/25/23 | Miami Marlins invited non-roster LHP Will Stewart to spring training. |
| 01/25/23 | Miami Marlins invited non-roster 3B Jacob Berry to spring training. |
| 01/25/23 | Miami Marlins invited non-roster C Jan Mercado to spring training. |
| 01/25/23 | Miami Marlins invited non-roster SS Charles Leblanc to spring training. |
| 01/25/23 | Miami Marlins invited non-roster LHP Robert Garcia to spring training. |
| 01/25/23 | Miami Marlins invited non-roster LHP Dax Fulton to spring training. |
| 01/25/23 | Miami Marlins invited non-roster C Paul McIntosh to spring training. |
| 01/25/23 | Miami Marlins invited non-roster SS Nasim Nuñez to spring training. |
| 01/25/23 | Miami Marlins invited non-roster C Will Banfield to spring training. |
| 01/25/23 | Miami Marlins invited non-roster RF Troy Johnston to spring training. |
| 01/25/23 | Miami Marlins invited non-roster OF Brian Miller to spring training. |
| 01/20/23 | Miami Marlins traded RHP Pablo López, SS Jose Salas and OF Byron Chourio to Minnesota Twins for 2B Luis Arraez. |
| 01/20/23 | Miami Marlins traded RHP Pablo López, SS Jose Salas and OF Byron Chourio to Minnesota Twins for 2B Luis Arraez. |
| 01/20/23 | Miami Marlins traded RHP Pablo López, SS Jose Salas and OF Byron Chourio to Minnesota Twins for 2B Luis Arraez. |
| 01/20/23 | Miami Marlins traded RHP Pablo López, SS Jose Salas and OF Byron Chourio to Minnesota Twins for 2B Luis Arraez. |
| 01/19/23 | Miami Marlins designated LHP Daniel Castano for assignment. |
| 01/19/23 | Miami Marlins signed free agent RHP Johnny Cueto. |
| 01/18/23 | Miami Marlins signed free agent LHP Devin Smeltzer to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent OF Jancory De La Cruz to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent 2B Joseph Tailor to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent RHP Bayant Melo to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent OF Andres Valor to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent OF Anthony Rodriguez to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent LHP Luis Porfirio to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent OF Khris Almonte to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent C Jeremy Almonte to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent SS Fabian Lopez to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent OF Jose Made to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent RHP Derek Arellan to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent RHP Miguel Toscano to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent LHP Elier Morillo to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent SS Adrian Ibarra to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent RHP Manuel Genao to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent LHP Keyner Benitez to a minor league contract. |
| 01/15/23 | Miami Marlins signed free agent OF Osvaldo Heredia to a minor league contract. |
| 01/12/23 | Miami Marlins activated RHP Huascar Brazoban. |
| 01/12/23 | Miami Marlins activated SS Jordan Groshans. |
| 01/12/23 | Miami Marlins activated OF JJ Bleday. |
| 01/12/23 | Miami Marlins activated LHP Andrew Nardi. |
| 01/12/23 | Miami Marlins activated CF Peyton Burdick. |
| 01/11/23 | Miami Marlins traded SS Miguel Rojas to Los Angeles Dodgers for SS Jacob Amaya. |
| 01/11/23 | Miami Marlins traded SS Miguel Rojas to Los Angeles Dodgers for SS Jacob Amaya. |
| 01/11/23 | Miami Marlins sent SS Charles Leblanc outright to Jacksonville Jumbo Shrimp. |
| 01/04/23 | Miami Marlins designated SS Charles Leblanc for assignment. |
| 01/04/23 | Miami Marlins signed free agent SS Jean Segura. |
| 01/04/23 | Miami Marlins activated SS Jean Segura. |
| 01/04/23 | Miami Marlins signed free agent RHP Enrique Burgos to a minor league contract. |