The Mount Vernon Kings was the final moniker of the minor league baseball teams based in Mount Vernon, Illinois, U.S. between 1910 and 1954. Mount Vernon last played as members of the Mississippi–Ohio Valley League from 1949 to 1954, a league that evolved into today's Midwest League. Mount Vernon teams previously played as members of the Southern Illinois League in 1910 and Illinois State League in 1947 and 1948. The Mount Vernon franchise permanently folded after the 1954 season.