Derek Ervin Smith (November 1, 1961 – August 9, 1996) was an American professional basketball player. He won a national championship with the Louisville Cardinals in 1980, and spent nine years in the NBA in a career shortened by a knee injury. He would later become an assistant coach for the Washington Bullets from 1994 until his death.
Derek Ervin Smith won his second NBA ring while coaching the Washington Bullets.