William Walter
William Walter may refer to:
- William Walter (MP for Buckingham), Member of Parliament for Buckingham 1553
- Sir William Walter (MP for Peterborough), MP for Peterborough (UK [Parliament constituency)|Peterborough] 1614, Ludgershall 1626 and Lichfield 1628
- William Walter (boxer), German boxer
- William Grey Walter, American neurophysiologist
- William Walter, partner in the Walter and Wilson architectural firm with James Keys Wilson
- William Walter, founder of Scripture Gift Mission in 1888
- William W. Walter, American religious leader
- Sir William Walter, 1st Baronet, MP for Weobley
- William Walter (poet), English poet and translator