The 1981 Milwaukee Brewers season was the franchise's 13th overall season and 12th season based in Milwaukee. The Brewers finished first in American League East during the second half of the split season (caused by the 1981 Major League Baseball strike) and compiled an overall record of 62 wins and 47 losses. The team advanced to the postseason for the first time in franchise history due to their second-half first-place finish, but lost to the New York Yankees in the ALDS. Rollie Fingers became the first relief pitcher in the history of the American League to win the MVP Award.

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

Relief pitchers

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

ALDS

New York wins series, 3-2.

Awards and honors

Farm system

The Brewers' farm system consisted of five minor league affiliates in 1981. The Butte Copper Kings won the Pioneer League championship.