Clair is a French surname. Notable people with the surname include:
Clair (Hampshire cricketer), English cricketerBenoît Clair (born 1953), French journalist and writerCyrielle Clair (born 1955), French actressDaphne Clair (born 1939), New Zealand writerFraser Clair (born 1981), Canadian ice hockey playerGene Clair (1940–2013), American sound engineerJany Clair (born 1938), French actressJean Clair (born 1940), French writerJoe Clair, American stand-up comedianJulia Clair (born 1994), French ski jumperMichel Clair (born 1950), Canadian politicianRené Clair (1898–1981), French film director and writerSandie Clair (born 1988), French cyclistSerge Clair (born 1940), Mauritian politician