| 1891 Boston Beaneaters | |
|---|---|
| National League Champions | |
| League | National League |
| Ballpark | South End Grounds |
| City | Boston, Massachusetts |
| Record | 87–51 (.630) |
| League place | 1st |
| Owner | Arthur Soden |
| Manager | Frank Selee |
The 1891 Boston Beaneaters season was the 21st season of the franchise. The team finished first in the National League with an 87–51 record. After trailing the Chicago Colts by seven games in early September, the Beaneaters won 25 of their last 29 games to finish first in the league.