Hippolyte Castille (Montreuil-sur-Mer, November 8, 1820—Luc-sur-Mer, September 26, 1886) was a French writer and polemicist.
He wrote in collabotation with Frédéric Bastiat and Gustave de Molinari.
Among his works are the Portraits historiques du dix-neuvième siècle, with portraits of the likes of Chateaubriand, Baroche and Lamartine, among many others. He also wrote about Napoleon III.