Le Signe du lion is a black and white French drama film directed by Éric Rohmer, which was filmed on location in Paris in the summer of 1959 but not released until May 1962. His first full-length work, it is not however one of his Six Moral Tales. Along with The 400 Blows and À Double Tour by Claude Chabrol, who produced The Sign of Leo, it counts as one of the first films of the French New Wave.

Jean Marie Maurice Schérer or Maurice Henri Joseph Schérer, known as Éric Rohmer, was a French film director, film critic, journalist, novelist, screenwriter, and teacher.