The Florida Marlins' 2005 season was the 13th season for the Major League Baseball (MLB) franchise in the National League. It would begin with the team attempting to improve on their season from 2004. Their manager was Jack McKeon. They played home games at Dolphin Stadium. They finished with a record of 83–79, third in the National League East and failed to make the playoffs for the second consecutive season.

Offseason

Regular season

Season standings

National League East

Record vs. opponents

Roster

Player stats

Batting

Starters by position

''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Other batters

''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Pitching

Starting pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers

Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts

Farm system