1891 Louisville Colonels season

The 1891 Louisville Colonels baseball team finished with a 54–83 record, collapsing back into mediocrity after their pennant winning season of 1890. They finished the season in eighth place in the American Association. After the season, the Association folded and four teams, including Louisville, were admitted into the National League.

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''

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