Launois is a French surname. Notable people with the name include: Bernard Launois (1930–2026), French exploitation film director, screenwriter and actor Jean Launois (1898–1942), French artist John Launois (1928–2002), French-American photojournalist Pascale Launois, French crystallographer Pierre-Émile Launois (1856–1914), French physician
See also Launois-sur-Vence, commune in the Ardennes department in northern France Launois-Cleret syndrome and benign symmetric lipomatosis of Launois–Bensaude, named after Pierre-Émile Launois