| 1886 Pittsburgh Alleghenys | |
|---|---|
| League | American Association |
| Ballpark | Recreation Park |
| City | Allegheny, Pennsylvania |
| Owner | Denny McKnight |
| Manager | Horace 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.