The Milwaukee Brewers' 1990 season involved the Brewers' finishing sixth in the American League East with a record of 74 wins and 88 losses. This was the first season where the players last names appeared on the back of the jerseys, but only for away games. It would be another 3 years before the names appeared on the home jerseys.

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

The Brewers' farm system consisted of seven minor league affiliates in 1990. The Brewers operated a Dominican Summer League team as a co-op with the Toronto Blue Jays. The Stockton Ports won the California League championship, and the AZL Brewers won the Arizona League championship.