The Milwaukee Brewers' 2003 season involved the Brewers' finishing 6th in the National League Central with a record of 68 wins and 94 losses.
Offseason
October 11, 2002: Scott Podsednik was selected off waivers by the Milwaukee Brewers from the Seattle Mariners. November 5, 2002: Brooks Kieschnick was signed as a free agent with the Milwaukee Brewers. November 13, 2002: Scott Seabol was signed as a free agent with the Milwaukee Brewers. January 31, 2003: John Vander Wal was signed as a free agent with the Milwaukee Brewers. February 13, 2003: Tim Crabtree was signed as a free agent with the Milwaukee Brewers.
Regular season
On September 19, 2003, Arizona Diamondbacks pitcher Randy Johnson hit a home run off of Brewers pitcher Doug Davis, his only MLB home run.
Season standings
National League Central
Record vs. opponents
Transactions
May 15, 2003: Scott Seabol was released by the Milwaukee Brewers. June 3, 2003: Tony Gwynn, Jr. was drafted by the Milwaukee Brewers in the 2nd round of the 2003 amateur draft. Player signed June 19, 2003.
Roster
Players 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 eight minor league affiliates in 2003. The Brewers operated a Venezuelan Summer League team as a co-op with the Cincinnati Reds.