| Formerly | Longhorn League |
|---|---|
| Classification | Independent (1887) Class D (1904, 1921) Class C (1922–1923) Class D (1924–1926) Class B (1956–1957) |
| Sport | Minor League Baseball |
| First season | 1887 |
| Ceased | 1957 |
| Replaced by | Sophomore League |
| President | Will Kimmel (1904) D.F. Smith (1904) Ensley Barbour (1921–1923) J.W. Harris (1924) Dale Gear (1925–1926) W. J. Green (1956–1957) |
| No. of teams | 42 |
| Country | United States of America |
| Most titles | 2 Hobbs Sports |
The Southwestern League was the name of four former minor league baseball leagues that operated in the Southwestern United States. The second league, also known as the Oklahoma State League, was in operation for the 1904 season. The third league operated from 1921 to 1926. The fourth league, formerly the Longhorn League, operated from 1956 to 1957 before changing its name to the Sophomore League.