Jean-Marie-Mathias-Philippe-Auguste, comte de Villiers de l'Isle-Adam (November 7, 1838 – August 19, 1889) was a French symbolist writer.
Villiers de l'Isle-Adam was born in Saint-Brieuc, Brittany, to a distinguished aristocratic family. His parents, Marquis Joseph-Toussaint and Marie-Francoise (née Le Nepvou de Carfort) were not rich, however, and were financially supported by Marie's aunt, Mademoiselle de Kerinou. His father became obsessed with the idea he could restore the family fortune by finding the lost treasure of the Knights of Malta, reputedly buried near Quintin during the French Revolution. Consequently, he spent large sums of money buying land, excavating it and then selling it at a loss when he failed to find anything of value. The young Villiers' education was troubled (he attended over half a dozen different schools) but from an early age his family were convinced he was an artistic genius: as a child he composed poetry and music. The most important occurrence in these Breton years was probably the death of a young girl with whom Villiers was in love, an event which would deeply influence his literary imagination.
Villiers' works, in the romantic style, are often fantastic in plot and filled with mystery and horror. Important among them are the drama Axel (1890), the novel L'Ève future ("Tomorrow's Eve") (1886), and the short-story collection, Contes cruels (1883, tr. Sardonic Tales, 1927). L'Ève future greatly helped to popularize the term "Android" (Andréide in French).