John "Jack" Livesey (born 15 May 1954) is a British military imposter who posed as a decorated war hero; in actuality he served in the army as a cook for three years. His fabricated military record included twenty years in the Parachute Regiment, fighting with the 2nd Battalion in the Falklands War, serving five tours of duty in Northern Ireland, receiving the Military Medal and reaching the rank of Colour Sergeant. He has worked as a historian, author, consultant, lecturer and battlefield tour guide on the basis of his alleged military experience.