M. Maryan was the pseudonym used by Marie Rosalie Virginie Cadiou (1847-1927), a French novelist born in Brest who worked in Paris.

Cadiou published her entire catalog of literary work under the pseudonym M. Maryan,[1] which in English means "Mr.

While in Paris, she worked intensely at her writing, sometimes producing four novels a year, most intended for young girls.

[2] Cadiou was a frequent contributor to the Journal des Demoiselles, a Paris periodical for affluent girls aged 14 to 18, which devoted a portion of its editions to education and science as well as literature, fashion and theater.

[1][2][8] Based on her work, she was given a distinguished title of Laureate by the Académie française even though she considered herself "lacking in literary ambition.