The 1983 Montreal Expos season was the 15th season in franchise history. They finished 82–80, 8 games back of the Philadelphia Phillies in the National League East. At the end of the season, the Expos had managed the best cumulative winning percentage in the National League from 1979 to 1983.

Offseason

Spring training

The Expos held spring training at West Palm Beach Municipal Stadium in West Palm Beach, Florida – a facility they shared with the Atlanta Braves. It was their seventh season at the stadium; they had conducted spring training there from 1969 to 1972 and since 1981.

Regular season

Season standings

Record vs. opponents

Notable transactions

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

Awards and honours

1983 Major League Baseball All-Star Game

Farm system

LEAGUE CHAMPIONS: Gastonia