William George Rushton, commonly known as Willie Rushton (18 August 1937 – 11 December 1996) was an English cartoonist, satirist, comedian, actor and performer who co-founded the Private Eye satirical magazine.

William George Rushton was born 18 August 1937 in the family home at Scarsdale Villas, Kensington, London (which 24 years later was to also be the editorial birthplace of Private Eye). He began attending Shrewsbury School in 1950, where he met his future Private Eye colleagues Richard Ingrams, Paul Foot and Christopher Booker. His distinctive character and tastes were already forming, as he introduced his friends to P. G. Wodehouse, the humorous columnist Beachcomber, and the records of ex-Footlights’ revue star Jack Hulbert. He gave a memorable performance as Lord Loam in The Admirable Crichton. He was becoming an accomplished illustrator, and his cartoons appeared in the school’s official magazine, The Salopian. He also contributed to the satirical rag, The Wallopian with Ingrams, Foot, Booker mocking school spirit, traditions and the masters. It was during this period that the term "pseud" was coined. The expression was given wider currency by Private Eye and is still in use as an insult against pseudo-intellectuals.