Julien Falk (1902-1987) was a 20th-century French composer and composition teacher at the Conservatoire de Paris, and wrote many theorical music books. He had many students including well known composers Serge Gainsbourg, Gabriel Yared, Michel Coeuriot, Michel Colombier, Pierre Yves Lenik, Eric Demarsan, Richard Galliano, Robbi Finkel, Philippe Blay and Alain Goraguer.