The 1991 New York Mets season was the 30th regular season for the Mets. They went 77–84 and finished fifth in the National League East for their first losing season since 1983. They were managed by Bud Harrelson and Mike Cubbage. They played home games at Shea Stadium.

Offseason

Regular season

Howard Johnson set the Mets record for most RBIs in one season with 117.

Opening Day starters

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 honors

League leaders

All-Stars

Frank Viola, Howard Johnson 1991 Major League Baseball All-Star Game

Farm system

LEAGUE CHAMPIONS: Columbia