Arthur Caesar (9 March 1892 – 20 June 1953) was a Romanian-American screenwriter and brother of the songwriter Irving Caesar.

Caesar first started writing Hollywood films in 1924.

He won an Academy Award for the story of Manhattan Melodrama (1934), which is most famous today for being the film that John Dillinger had just seen before getting gunned down outside the cinema.

Caesar died in Beverly Hills, California on June 20, 1953.

This article about an American screenwriter born in the 1890s is a stub.