Marlins Roster & Staff
Transactions
| Date | Transaction |
| 05/31/23 | RHP Nic Enright returned to Cleveland Guardians from Miami Marlins. |
| 05/30/23 | Miami Marlins activated CF Jesús Sánchez from the 10-day injured list. |
| 05/30/23 | RHP Nic Enright roster status changed by Miami Marlins. |
| 05/30/23 | Miami Marlins sent LHP Trevor Rogers on a rehab assignment to Jupiter Hammerheads. |
| 05/30/23 | Miami Marlins sent LHP A.J. Puk on a rehab assignment to Pensacola Blue Wahoos. |
| 05/30/23 | Miami Marlins optioned SS Xavier Edwards to Jacksonville Jumbo Shrimp. |
| 05/29/23 | Miami Marlins designated RHP Nic Enright for assignment. |
| 05/29/23 | Miami Marlins designated RHP Nic Enright for assignment. |
| 05/27/23 | Miami Marlins sent RF Avisaíl García on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/27/23 | Miami Marlins sent RF Avisaíl García on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/26/23 | Miami Marlins sent CF Jesús Sánchez on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/26/23 | Miami Marlins sent CF Jesús Sánchez on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/26/23 | Miami Marlins sent CF Jesús Sánchez on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/24/23 | Miami Marlins signed free agent RHP Luis Espinoza to a minor league contract. |
| 05/23/23 | Miami Marlins activated CF Jonathan Davis. |
| 05/23/23 | Miami Marlins placed RHP Johnny Cueto on the 60-day injured list. Right biceps tightness. |
| 05/23/23 | Miami Marlins placed CF Jonathan Davis on the 10-day injured list. Right knee sprain. |
| 05/23/23 | Miami Marlins optioned CF Peyton Burdick to Jacksonville Jumbo Shrimp. |
| 05/23/23 | Miami Marlins selected the contract of CF Jonathan Davis from Jacksonville Jumbo Shrimp. |
| 05/22/23 | CF Jonathan Davis roster status changed by Miami Marlins. |
| 05/22/23 | Detroit Tigers traded CF Jonathan Davis to Miami Marlins for OF Brady Allen. |
| 05/22/23 | Detroit Tigers traded CF Jonathan Davis to Miami Marlins for OF Brady Allen. |
| 05/16/23 | Miami Marlins activated RHP JT Chargois from the 15-day injured list. |
| 05/16/23 | Miami Marlins placed SS Jazz Chisholm Jr. on the 10-day injured list retroactive to May 14, 2023. Right turf toe. |
| 05/16/23 | Miami Marlins recalled SS Xavier Edwards from Jacksonville Jumbo Shrimp. |
| 05/14/23 | Miami Marlins activated 1B Garrett Cooper from the 10-day injured list. |
| 05/14/23 | Miami Marlins sent RHP Chi Chi González outright to Jacksonville Jumbo Shrimp. |
| 05/13/23 | Miami Marlins placed LHP A.J. Puk on the 15-day injured list. Left elbow nerve irritation. |
| 05/13/23 | Miami Marlins placed LHP A.J. Puk on the 15-day injured list. Left elbow nerve irritation. |
| 05/12/23 | Miami Marlins sent 1B Garrett Cooper on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/12/23 | Miami Marlins designated RHP Chi Chi González for assignment. |
| 05/12/23 | Miami Marlins sent RHP Tommy Nance on a rehab assignment to Jupiter Hammerheads. |
| 05/12/23 | Miami Marlins sent RHP Tommy Nance on a rehab assignment to Jupiter Hammerheads. |
| 05/12/23 | Miami Marlins sent 1B Garrett Cooper on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/12/23 | Miami Marlins selected the contract of RHP Eury Pérez from Pensacola Blue Wahoos. |
| 05/09/23 | Miami Marlins sent RHP JT Chargois on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/08/23 | Miami Marlins signed free agent RHP Noah Gotsis to a minor league contract. |
| 05/07/23 | Miami Marlins sent RHP Nic Enright on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/07/23 | Miami Marlins activated 2B Joey Wendle from the 10-day injured list. |
| 05/07/23 | Miami Marlins optioned SS Xavier Edwards to Jacksonville Jumbo Shrimp. |
| 05/06/23 | Miami Marlins sent LHP Devin Smeltzer outright to Jacksonville Jumbo Shrimp. |
| 05/05/23 | Miami Marlins sent RHP JT Chargois on a rehab assignment to Jupiter Hammerheads. |
| 05/05/23 | Miami Marlins signed free agent RHP Zach Willeman to a minor league contract. |
| 05/05/23 | Miami Marlins sent RHP Johan Quezada outright to Jacksonville Jumbo Shrimp. |
| 05/04/23 | Miami Marlins designated LHP Devin Smeltzer for assignment. |
| 05/04/23 | Miami Marlins selected the contract of RHP Chi Chi González from Jacksonville Jumbo Shrimp. |
| 05/03/23 | Miami Marlins placed 1B Garrett Cooper on the 10-day injured list. Inner ear infection. |
| 05/03/23 | Miami Marlins designated RHP Johan Quezada for assignment. |
| 05/03/23 | Miami Marlins recalled CF Peyton Burdick from Jacksonville Jumbo Shrimp. |
| 05/03/23 | Miami Marlins selected the contract of LHP Devin Smeltzer from Jacksonville Jumbo Shrimp. |
| 05/02/23 | Miami Marlins sent RHP Johnny Cueto on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/02/23 | Miami Marlins sent RHP Johnny Cueto on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/02/23 | Miami Marlins placed RF Avisaíl García on the 10-day injured list retroactive to April 29, 2023. Left back tightness. |
| 05/02/23 | Miami Marlins sent RHP Johnny Cueto on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 05/02/23 | Miami Marlins sent LHP Devin Smeltzer outright to Jacksonville Jumbo Shrimp. |
| 05/02/23 | Miami Marlins recalled SS Xavier Edwards from Jacksonville Jumbo Shrimp. |