John Fortescue may refer to:
John Fortescue (Devon lawyer) (died before 1436), English landowner and administrator John Fortescue (judge) (c. 1394–1479), English lawyer, judge and Member of Parliament John Fortescue of Salden (1531/1533–1607), third Chancellor of the Exchequer of England John Fortescue Aland, 1st Baron Fortescue of Credan (1670–1746), English jurist John Fortescue (MP for Barnstaple) (1819–1859), British MP Sir John Fortescue (historian) (1859–1933), British statesman and military historian
See also John Inglett-Fortescue (1758–1840), British Member of Parliament