William Peyto may refer to:

William Petow or Peyto, cardinal William Peyto (died 1464) (c. 1394–1464), MP for Warwickshire, 1420 William Peyto (died 1734) (c. 1698–1734), MP for Warwickshire, 1715–34 Ebenezer William "Bill" Peyto (1869–1943), English-Canadian pioneer