Sir Cameron Anthony Mackintosh (born 17 October 1946) is a British theatrical producer and theatre owner notable for his association with many commercially successful musicals. At the height of his success in 1990, he was described as being "the most successful, influential and powerful theatrical producer in the world" by the New York Times. He is the producer of shows including Les Misérables, The Phantom of the Opera, Cats, Miss Saigon, Mary Poppins, Oliver!, and Hamilton.