Bill's New Frock is a book by Anne Fine and illustrated by Philippe Dupasquier for younger readers, first published in 1989, and reissued by Egmont in a new edition on 1 August 2002. The story concerns a young boy, Bill Simpson, who wakes up one morning to find he has transformed into a girl. Forced off to school in a frilly pink dress, Bill discovers one of the worst days in his life is about to begin. Baffled by the way things are just different for girls, Bill falls headlong into trouble. The book was adapted into an television special, which first aired on 6 June 1998.