Dreyfus is a surname. Notable people with the surname include:
Alfred Dreyfus (1859–1935), French Jewish military officer and focus of the Dreyfus affairAuguste Dreyfus (1827–1897), French guano merchant, financierCamille Dreyfus (1878–1956), Swiss chemist. He and his brother Henri Dreyfus invented Celanese, an acetate yarn.Camille Ferdinand Dreyfus (1849–1915), French lawyer who was Senator for Seine-et-Oise from 1909 to 1915.Charles Dreyfus (1848–1935), British-French Zionist and businessmanÉdouard Dreyfus Gonzalez (1876–1941) French lawyer and composer as "Jean Dora".Ferdinand-Camille Dreyfus (1851–1915), French journalist and politicianFrancis Dreyfus (1940–2010), French record producer, father of Julie DreyfusGeorge Dreyfus (born 1928), Australian composer, father of Mark DreyfusGérard Louis-Dreyfus (1932-2016), French-American businessman (Louis Dreyfus Group), father of Julia Louis-Dreyfus, cousin of Robert Louis-DreyfusRobert Louis-Dreyfus (1946–2009), French businessman (Adidas-Salomon), cousin of Gérard Louis-DreyfusHarry Dreyfus (1891–1978), American businessman implicated in the Secret Court of 1920Henri Dreyfus (1882–1944), Swiss chemist and co-inventor of CelaneseHubert Dreyfus (born 1929), American philosopher (University of California, Berkeley), brother of Stuart DreyfusHuguette Dreyfus (1928-2016), French harpsichordistJack Dreyfus (1913–2009), American financier, founder of the Dreyfus CorporationJérôme Dreyfus (born 1971), French judokaJulie Dreyfus (born 1966), French actressKaren Dreyfus, American violistLaurence Dreyfus (born 1952), American baroque music scholar and viol playerLee S. Dreyfus (1926–2008), American politician, Governor of Wisconsin (1979–1983)Mark Dreyfus (born 1956), Australian lawyer and politician, MP for Isaacs (2007–present), son of George DreyfusMax Dreyfus (1874–1964), German-born American music publisherPablo Dreyfus (1969/70–2009), Argentine arms controllerPhilippe Dreyfus, French informatics pioneerPierre Dreyfus (1907–1994), French civil servant, politician and businessman (Renault)René Dreyfus (1905–1993), French Grand Prix motor racing driverStuart Dreyfus, American academic, engineer and author (University of California, Berkeley), brother of Hubert DreyfusTony Dreyfus (born 1939), French politician, Member of the National Assembly for Paris (1997–present)Yves Dreyfus (born 1931), French Olympic fencer