Clain may refer to: Clain is a surname. Notable people with the name include:
People with the surname Elvira Clain-Stefanelli (1914–2001), American numismatist and advisor to the US Mint Fabien Clain (1978–2019), French purported veteran jihadist terrorist Médéric Clain (born 1976), French cyclist Pablo Clain (1652–1717), Jesuit missionary and scientist in the Philippines
See also Similar surnames: Clein, Cline, Clyne, Klein, Kleine, Kline, Klyne