Don Harper (18 March 1921 – 30 May 1999) was an Australian jazz violinist and composer. During his long and diverse career, both in his native Australia, and the UK, he was a regular on radio and TV music shows, and recorded many albums, as a solo performer, or leader of a group. He also composed themes for TV shows including "World of Sport” and "Champion House”, as well as incidental music for "The Invasion (Doctor Who)" ()