| 1889 Pittsburgh Alleghenys | |
|---|---|
| League | National League |
| Ballpark | Recreation Park |
| City | Allegheny, Pennsylvania |
| Owner | William A. Nimick |
| Managers | Horace B. Phillips, Fred Dunlap, Ned Hanlon |
The 1889 Pittsburgh Alleghenys season was the eighth season of the Pittsburgh Alleghenys franchise and their third in the National League. The Alleghenys finished fifth in the league standings with a record of 61–71.