Frank James Coughlan (7 June 1904 – 6 April 1979) was an Australian jazz musician and band leader. He is described in the Australian Dictionary of Biography as "One of the most influential musicians in the development of jazz in Australia."Coughlan was born in Emmaville, New South Wales. His father William was a tin miner and leader of the Glen Innes and District band, and taught all his five sons to play brass instruments.Coughlan moved to Sydney in 1922. He played trombone and trumpet, arranged music, and led the band at the Sydney Trocadero both before and after service in World War II. He died 6 April 1979 at Randwick, New South Wales, aged 74.