Offseason
- November 24, 2005: Hanley Ramírez was traded by the Boston Red Sox with Jesus Delgado (minors), Harvey Garcia, and Aníbal Sánchez to the Florida Marlins for Josh Beckett, Mike Lowell, and Guillermo Mota.
- November 24, 2005: Carlos Delgado was traded by the Florida Marlins with cash to the New York Mets for Mike Jacobs, Yusmeiro Petit, and Grant Psomas (minors).
- December 5, 2005: Paul Lo Duca was traded by the Florida Marlins to the New York Mets for Dante Brinkley (minors) and Gaby Hernandez (minors).
- December 7, 2005: Juan Pierre was traded by the Florida Marlins to the Chicago Cubs for Sergio Mitre, Ricky Nolasco, and Renyel Pinto.
- December 8, 2005: Dan Uggla was drafted by the Florida Marlins from the Arizona Diamondbacks in the 2005 minor league draft.
- December 15, 2005: Buddy Carlyle was signed as a Free Agent with the Florida Marlins.
- January 15, 2006: Scott Seabol was signed as a Free Agent with the Florida Marlins.
Read more about this topic: 2006 Florida Marlins Season