Lost Horizon is a 1933 novel by English writer James Hilton. The book was turned into a film, also called Lost Horizon, in 1937 by director Frank Capra and a lavish musical remake in 1973 by producer Ross Hunter with music by Burt Bacharach. It is best remembered as the origin of Shangri-La, a fictional utopian lamasery located high in the mountains of Tibet.

James Hilton was an English novelist and screenwriter. He is best remembered for his novels Lost Horizon, Goodbye, Mr. Chips and Random Harvest, as well as co-writing screenplays for the films Camille (1936) and Mrs. Miniver (1942), the latter earning him an Academy Award.