Middle States League
| Sport | Baseball |
|---|---|
| Founded | 1889 |
| Ceased | 1889 |
| No. of teams | 13 (total) |
| Country | United States |
| Last champion(s) | Harrisburg Ponies (1889) |
The Middle States League was a minor league baseball league that operated in the Northeast United States in 1889. A total of 13 teams competed in the league, though several joined the original 8-team lineup after its April 28 start and several folded before its September 10 close. It was a racially integrated league that included two African American teams, the Cuban Giants and New York Gorhams. The Harrisburg Ponies won the league pennant.