1886 Pittsburgh Alleghenys season

1886 Pittsburgh Alleghenys
LeagueAmerican Association
BallparkRecreation Park
CityAllegheny, Pennsylvania
OwnerDenny McKnight
ManagerHorace B. Phillips

The 1886 Pittsburgh Alleghenys season was the fifth season of the Pittsburgh Alleghenys franchise. The Alleghenys finished second in the American Association with a record of 80–57.