Marcelle Capy is the pseudonym adopted by Marcelle Marquès (1891–1962), a French novelist, journalist, feminist and militant pacifist. She published a number of works from 1916 to 1950, all devoted to her interest in pacifism. She is remembered in particular for her award-winning Des hommes passèrent (Men Passed By), published in 1930. As a journalist, she contributed to many papers, especially La Vague which she co-founded in 1918. In the early 1930s, she was an active member of the Ligue internationale des combattants de la paix (International League of Fighters for Peace).