William Dalton may refer to:
William Dalton (author) (1821–1875), English author William M. Dalton (1866–1894), Old West outlaw, co-leader of the Wild Bunch gang Bill Dalton (footballer) (1876–1955), Australian rules footballer William Julian Dalton (1883–1941), American silent film actor, better known as Julian Eltinge William S. Dalton, current President and CEO of the H. Lee Moffitt Cancer Center and Research Institute. Will Dalton, lacrosse player William Dalton (Lucky Luke), fictional character from Lucky Luke Bill Dalton, the writer of the Indonesia Handbook William Boyd Dalton (1870–1946), Irish international footballer