Clay Smith

Clay Smith may refer to:
 * Clay Smith (cricketer) (born 1971), Bermudian cricketer
 * Clay Smith (baseball) (1914–2002), Major League Baseball pitcher
 * Clay Smith (footballer) (born 1993), Australian rules footballer
 * Clay King Smith (1970–2001), American murderer
 * Green Clay Smith (1826–1895), major general during the Civil War
 * Clay Smith Cams, an auto shop founded in 1947 by hot rod enthusiast Clay Smith (1921–1954)
 * Clay Smith (music composer) (born 1953), American music composer