Marlins Roster & Staff
Transactions
| Date | Transaction |
| 06/30/14 | Miami Marlins designated CF Brent Keys for assignment. |
| 06/30/14 | Kansas City Royals traded LHP Donnie Joseph to Miami Marlins for cash. |
| 06/30/14 | Miami Marlins optioned LHP Donnie Joseph to New Orleans Zephyrs. |
| 06/29/14 | Miami Marlins recalled LHP Dan Jennings from New Orleans Zephyrs. |
| 06/29/14 | Miami Marlins optioned RHP Anthony DeSclafani to New Orleans Zephyrs. |
| 06/29/14 | Miami Marlins optioned CF Jake Marisnick to New Orleans Zephyrs. |
| 06/29/14 | Miami Marlins activated LF Christian Yelich from the 15-day disabled list. |
| 06/29/14 | Miami Marlins signed OF Zach Sullivan. |
| 06/28/14 | Miami Marlins signed RHP Jordan Holloway. |
| 06/28/14 | Miami Marlins optioned LHP Brian Flynn to New Orleans Zephyrs. |
| 06/28/14 | Miami Marlins recalled RHP Sam Dyson from New Orleans Zephyrs. |
| 06/27/14 | Miami Marlins recalled Brian Flynn from New Orleans Zephyrs. |
| 06/27/14 | Miami Marlins optioned 1B Justin Bour to New Orleans Zephyrs. |
| 06/26/14 | Miami Marlins sent LF Christian Yelich on a rehab assignment to New Orleans Zephyrs. |
| 06/26/14 | Miami Marlins signed LHP Chris Sadberry. |
| 06/25/14 | Miami Marlins recalled Donovan Solano from New Orleans Zephyrs. |
| 06/25/14 | Miami Marlins placed SS Adeiny Hechavarria on the 15-day disabled list retroactive to June 21, 2014. right triceps strain |
| 06/24/14 | Miami Marlins released RHP Kevin Slowey. |
| 06/23/14 | Miami Marlins signed LHP Scott Squier. |
| 06/23/14 | Miami Marlins signed RHP Jacob Smigelski. |
| 06/23/14 | Miami Marlins sent OF Christian Yelich on a rehab assignment to Jupiter Hammerheads. |
| 06/22/14 | Miami Marlins placed 2B Rafael Furcal on the 15-day disabled list. Strained left hamstring. |
| 06/22/14 | Miami Marlins recalled 2B Derek Dietrich from New Orleans Zephyrs. |
| 06/19/14 | Miami Marlins selected the contract of RHP Kevin Gregg from New Orleans Zephyrs. |
| 06/19/14 | Miami Marlins optioned C J.T. Realmuto to Jacksonville Suns. |
| 06/19/14 | Miami Marlins optioned LHP Dan Jennings to New Orleans Zephyrs. |
| 06/19/14 | Miami Marlins activated C Jarrod Saltalamacchia from the 15-day disabled list. |
| 06/18/14 | Miami Marlins signed free agent RHP Brad Penny to a minor league contract. |
| 06/18/14 | Miami Marlins signed C Christopher Hoo. |
| 06/18/14 | LHP Randy Wolf elected free agency. |
| 06/18/14 | Miami Marlins activated RHP Nathan Eovaldi from the paternity list. |
| 06/18/14 | Miami Marlins optioned RHP Sam Dyson to New Orleans Zephyrs. |
| 06/17/14 | Miami Marlins signed C Roy Morales. |
| 06/16/14 | Miami Marlins placed LF Christian Yelich on the 15-day disabled list retroactive to June 14, 2014. Lower back strain |
| 06/16/14 | Miami Marlins placed C Jarrod Saltalamacchia on the 15-day disabled list. Concussion |
| 06/16/14 | Miami Marlins selected the contract of Andrew Heaney from New Orleans Zephyrs. |
| 06/16/14 | Miami Marlins optioned 2B Donovan Solano to New Orleans Zephyrs. |
| 06/16/14 | Miami Marlins signed OF Casey Soltis. |
| 06/16/14 | Miami Marlins designated LHP Randy Wolf for assignment. |
| 06/16/14 | Miami Marlins designated RHP Kevin Slowey for assignment. |
| 06/16/14 | Miami Marlins sent C Jarrod Saltalamacchia on a rehab assignment to Jupiter Hammerheads. |
| 06/16/14 | Miami Marlins signed 1B Austen Smith. |
| 06/16/14 | Miami Marlins signed RHP Justin Hepner. |
| 06/16/14 | Miami Marlins signed free agent LHP James Buckelew. |
| 06/16/14 | Miami Marlins signed free agent LHP Alan Scott to a minor league contract. |
| 06/16/14 | Miami Marlins signed RHP Nick Williams. |
| 06/16/14 | Miami Marlins signed 2B Ryan Cranmer. |
| 06/16/14 | Miami Marlins signed RHP Steven Farnworth. |
| 06/16/14 | Miami Marlins signed C Brad Haynal. |
| 06/16/14 | Miami Marlins signed RHP Connor Overton. |
| 06/16/14 | Miami Marlins signed RHP Gregory Greve. |
| 06/16/14 | Miami Marlins signed RHP Kyle Fischer. |
| 06/16/14 | Miami Marlins signed LHP Kyle Porter. |
| 06/16/14 | Miami Marlins signed RHP Nick White. |
| 06/16/14 | Miami Marlins signed C Blake Anderson. |
| 06/16/14 | Miami Marlins signed LHP Michael Mader. |
| 06/16/14 | Miami Marlins signed SS Justin Twine. |
| 06/16/14 | Miami Marlins signed RHP Tyler Kolek. |
| 06/16/14 | Miami Marlins signed LHP Nestor Bautista. |
| 06/16/14 | Miami Marlins recalled Jake Marisnick from New Orleans Zephyrs. |
| 06/16/14 | Miami Marlins recalled Justin Bour from New Orleans Zephyrs. |
| 06/16/14 | Miami Marlins recalled Anthony DeSclafani from New Orleans Zephyrs. |
| 06/16/14 | Miami Marlins signed LHP Christian MacDonald. |
| 06/15/14 | Miami Marlins signed 3B Brian Schales. |
| 06/15/14 | Miami Marlins recalled Sam Dyson from New Orleans Zephyrs. |
| 06/15/14 | Miami Marlins placed RHP Nathan Eovaldi on the paternity list. |
| 06/14/14 | Miami Marlins sent LHP Brad Hand on a rehab assignment to New Orleans Zephyrs. |
| 06/13/14 | Miami Marlins signed SS Brian Anderson. |
| 06/13/14 | Tampa Bay Rays claimed RHP Angel Sanchez off waivers from Miami Marlins. |
| 06/13/14 | Miami Marlins activated 2B Rafael Furcal from the 60-day disabled list. |
| 06/12/14 | Miami Marlins signed 2B Frederick Davis. |
| 06/12/14 | Miami Marlins signed 1B Eric Fisher. |
| 06/12/14 | Miami Marlins optioned 1B Justin Bour to New Orleans Zephyrs. |
| 06/11/14 | Miami Marlins signed LHP Ben Holmes. |
| 06/10/14 | Miami Marlins sent 2B Rafael Furcal on a rehab assignment to Jupiter Hammerheads. |
| 06/07/14 | Miami Marlins signed OF Stone Garrett. |
| 06/05/14 | Miami Marlins sent 2B Rafael Furcal on a rehab assignment to Jacksonville Suns. |
| 06/04/14 | Miami Marlins optioned 2B Derek Dietrich to New Orleans Zephyrs. |
| 06/04/14 | Miami Marlins selected the contract of Justin Bour from New Orleans Zephyrs. |
| 06/04/14 | Miami Marlins transferred RHP Carter Capps from the 15-day disabled list to the 60-day disabled list. Right elbow sprain |
| 06/04/14 | Miami Marlins sent LHP Brad Hand on a rehab assignment to Jupiter Hammerheads. |
| 06/03/14 | Miami Marlins signed free agent RHP Kevin Gregg to a minor league contract. |
| 06/03/14 | Miami Marlins signed free agent SS Yosmany Guerra to a minor league contract. |
| 06/02/14 | Miami Marlins activated RHP Bryan Morris. |
| 06/02/14 | Miami Marlins optioned RHP Arquimedes Caminero to New Orleans Zephyrs. |
| 06/01/14 | Miami Marlins transferred RHP Jose Fernandez from the 15-day disabled list to the 60-day disabled list. Recovering from May 2014 Tommy John surgery |
| 06/01/14 | Pittsburgh Pirates traded RHP Bryan Morris to Miami Marlins for . |
| 06/01/14 | Miami Marlins placed C Jarrod Saltalamacchia on the 7-day disabled list. Concussion |
| 06/01/14 | Miami Marlins recalled J.T. Realmuto from Jacksonville Suns. |