1888 Pittsburgh Alleghenys season

The 1888 Pittsburgh Alleghenys season was the seventh season of the Pittsburgh Alleghenys franchise and their second in the National League.

The Alleghenys finished sixth in the league standings with a record of 66–68.

Infielders Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg.

= Batting average; HR = Home runs; RBI = Runs batted in Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

This article relating to a Pittsburgh Pirates baseball season is a stub.