Marcelle Auclair (11 November 1899 – 6 June 1983) was a French novelist, biographer, journalist and poet. She published biographies of several important historical figures, translated major historical/literary documents into French from Spanish, and wrote a novel. She also published an autobiographical work, two books on popular psychology, a religious book for children, a book on artistic images of Jesus. Several of her books were translated into English. She was co-founder with Jean Prouvost of the fashion magazine Marie Claire.