1890 Brooklyn Gladiators season

The 1890 Brooklyn Gladiators baseball team finished with a 26–73 record, last place in the American Association during their only season in existence. The team failed to finish the season, folding after their game against the Syracuse Stars on August 25. They were replaced by the resurrected Baltimore Orioles franchise, which had left the league at the end of the 1889 season.

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