The 1981 Chicago Cubs season was the 110th season of the Chicago Cubs franchise, the 106th in the National League and the 66th at Wrigley Field. The Cubs finished the first-half in last place at 15–37, 17½ games behind the Philadelphia Phillies, and the second-half in fifth place at 23–28, six games behind the eventual NL East Champion Montreal Expos in the National League East. It was also the final season for the Cubs under the Wrigley family ownership, as the Tribune Company took over the club late in the year.

Offseason

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

Farm system