| Classification | Class C |
|---|---|
| Sport | Minor league baseball |
| First season | 1951 |
| Ceased | 1952 |
| No. of teams | 12 |
| Countries |  United States Mexico |
The Southwest International League was a minor league baseball league that operated from 1951 through 1952. The league was formed through the merger of the Sunset League and Arizona–Texas League in 1951. The league hosted franchises based in Mexico, Arizona, California, Nevada and Texas.