| 1890 Brooklyn Bridegrooms | |
|---|---|
| National League Champions | |
| League | National League |
| Ballpark | Washington Park |
| City | Brooklyn, New York |
| Owners | Charles Byrne, Ferdinand Abell |
| President | Charles Byrne |
| Manager | Bill McGunnigle |
The 1890 Brooklyn Bridegrooms left the American Association and joined the National League. They won the league championship, becoming one of a select few teams to win championships in different leagues in back-to-back seasons.