Mr. Justice Raffles is a 1909 novel written by E.W. Hornung. It featured his popular character A. J. Raffles a well-known cricketer and gentleman thief. It was the fourth and last in his four Raffles books which had begun with The Amateur Cracksman in 1899. The novel was published in the UK by Smith, Elder & Co., London, and in the US by Scribner's, New York.