Leonard King or Len King may refer to: Leonard William King (1869–1919), English archaeologist and Assyriologist Len King (1925–2011), South Australian politician, lawyer and judge Len King (cricket umpire) (born 1941), Australian cricket umpire Leonard King (basketball) (born 1966), American basketball player Leonard King (drummer), American jazz drummer who played on several albums with James Carter in the mid-2000s