William Jephson may refer to: Sir William Jephson (died 1615), MP for Hampshire William Jephson (died 1658), MP for Stockbridge and Cork William Jephson (died 1691), MP for East Grinstead and Wycombe William Jephson (died 1698), MP for Mallow William Jephson (died 1716), MP for Mallow William Jephson (died 1779), MP for Mallow William Jephson (priest) (died 1720), dean of Lismore William Jephson (cricketer) (1873–1956), English cricketer