1985 Montreal Expos season

The 1985 Montreal Expos season was the 17th season in franchise history. They finished with a record of 84–77, third in the National League East and 16 1/2 games behind the St. Louis Cardinals.

Offseason

 * November 7, 1984: Chris Welsh was traded by the Expos to the Texas Rangers for Dave Hostetler.
 * November 14, 1984: Larry Walker was signed by the Expos as an amateur free agent.
 * December 4, 1984: Jack Daugherty was purchased by the Expos from the Helena Gold Sox.
 * December 7, 1984: Bob James was traded by the Expos to the Chicago White Sox for Vance Law.
 * December 7, 1984: Bryan Little was traded by the Expos to the Chicago White Sox for Bert Roberge.
 * December 10, 1984 Gary Carter was traded by the Expos to the New York Mets for Hubie Brooks, Mike Fitzgerald, Herm Winningham and Floyd Youmans.
 * January 9, 1985: Mike Stenhouse was traded by the Expos to the Minnesota Twins for Jack O'Connor.
 * March 28, 1985: Bobby Ramos was released by the Expos.

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 ninth season at the stadium; they had conducted spring training there from 1969 to 1972 and since 1981.

Regular season
April 30, 1985: In an 11–0 loss to the Philadelphia Phillies, position player Razor Shines pitched one inning as the Expos pitching resources were depleted.

Notable transactions

 * May 12, 1985: Dave Hostetler was purchased from the Expos by the Chicago Cubs.
 * June 3, 1985: Randy Johnson was drafted by the Expos in the 2nd round of the 1985 Major League Baseball Draft. Johnson signed June 9, 1985.
 * June 22, 1985: The Expos traded a player to be named later to the Toronto Blue Jays for Mitch Webster. The Expos completed the deal by sending Cliff Young to the Blue Jays on September 10.
 * August 12, 1985: Doug Frobel was purchased by the Montreal Expos from the Pittsburgh Pirates.

Major League debuts

 * Batters:
 * Andrés Galarraga (Aug 23)
 * Al Newman (June 14)
 * Pitchers:
 * Tim Burke (Apr 8)
 * John Dopson (Sep 4)
 * Floyd Youmans (Jul 1)

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''

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

Award winners
1985 Major League Baseball All-Star Game
 * Andre Dawson, National League Gold Glove