Joseph Marie Eugène Sue (French pronunciation: [ø.ʒɛn sy] (20 January 1804 – 3 August 1857) was a French novelist.
His naval experiences supplied much of the materials of his first novels, Kernock le pirate (1830), Atar-Gull (1831), La Salamandre (2 vols., 1832), La Coucaratcha (4 vols., 1832–1834), and others, which were composed at the height of the Romantic movement of 1830. In the quasi-historical style he wrote Jean Cavalier, ou Les Fanatiques des Cevennes (4 vols., 1840) and Latréaumont (2 vols., 1837). His Mathilde (1841) contains the first known expression of the popular proverb "La vengeance se mange très-bien froide", lately expressed in English as "Revenge is a dish best served cold".
He was strongly affected by the Socialist ideas of the day, and these prompted his most famous works, the "anti-Catholic" novels: Les Mystères de Paris (published in Journal des débats from 19 June 1842 until 15 October 1843) and Le Juif errant (tr. "The Wandering Jew") (10 vols., 1844–1845), which were among the most popular specimens of the serial novel.