Marcel Ichac (22 October 1906 - 9 April 1994) was a French alpinist, explorer, photographer and film director.
Born in Rueil, France, Ichac was one of the first people to introduce electronic music in cinema with Ondes Martenot for Karakoram (1936) and released the first French movie in CinemaScope, Nouveaux Horizons (1953).
He also accompanied the French Alpine Club's 1950 expedition that climbed Annapurna, which was led by Maurice Herzog, and include such climbing luminaries as Lionel Terray, Louis Lachenal and Gaston Rébuffat.