Gustave "Gussie" Mueller (April 17, 1890 – December 16, 1965) was an early jazz clarinetist. The New Orleans, Louisiana-born Mueller was a top clarinetist with Papa Jack Laine's bands in New Orleans before going to Chicago, Illinois with Tom Brown's band in early 1915. After serving in the Army in World War I he moved to California and joined the early Paul Whiteman Orchestra, with which he moved to New York City. He helped give the Whiteman band a touch of the Dixieland jazz style. One of the Whiteman Orchestra's early hit records, as well as one of the unfortunately few recordings where Mueller can be heard prominently, is Wang Wang Blues which Mueller dominates in a style similar to Larry Shields. Mueller also shares composer credit on "Wang Wang".