Martial Piéchaud (6 September 1888 in Bordeaux – 24 August 1957 in Nay), was a 20th-century French writer, literary critic and playwright.
He was a member of the "Lost Generation", and childhood friend of François Mauriac, André Lafon and Jean de La Ville de Mirmont.
He won the Narcisse Michaud prize of the Académie française in 1951.