The Sunset League was a minor league baseball circuit that operated from 1947 through 1950.

The Sunset League was a Class C level league, with franchises based in the United States and Mexico. The league expanded from six to eight teams from 1949 to 1950. There was a previous league called the "Sunset League" that briefly played in Texas in the 1902 season.

For the 1951 season, the circuit merged with the Arizona–Texas League to form the Southwest International League.

In 1902, a "Sunset League" included Beaumont (8–4), Lake Charles (7–6), Crowley (6–6) and Houston (3–8). Records are from the May 27, 1902, Houston Daily Post and are not official.^{[citation needed][1]}

The Sunset League was one of many short–lived minor leagues of the late 1940s and early 1950s. The Class C level circuit ran from 1947 through 1950. Las Vegas, El Centro and Riverside were members every year. It was an extremely high offensive league; in 1947, Las Vegas averaged 9 runs a game and finished 73–67.^[2] The league merged with the Arizona-Texas League in 1951 to form the Southwest International League.^[3]

• Anaheim, CA: Anaheim Valencias (1947); Anaheim/San Bernardino Valencias (1948)
• El Centro, CA: El Centro Imperials (1947–1950)
• Las Vegas, NV: Las Vegas Wranglers (1947–1950)
• Mexicali, Baja California: Mexicali Eagles (1948–1949)
• Ontario, CA: Ontario Orioles (1947)
• Porterville, CA: Porterville Packers (1949–1950)
• Reno, NV: Reno Silver Sox (1947–1949)
• Riverside, CA: Riverside Dons (1947; 1949); Riverside Rubes (1948; 1950)
• Salinas, CA: Salinas Colts (1949)
• San Bernardino, CA: San Bernardino Pioneers (1949–1950)
• Tijuana, Baja CA: Tijuana Potros (1949–1950)
• Yuma, AZ: Yuma Panthers (1950)

• 1947 – Anaheim Valencias
• 1948 – Reno Silver Sox
• 1949 – Las Vegas Wranglers *
• 1950 – El Centro Imperials

 * Playoffs were not played