Prince Jean Charles Lamoral de La Trémoïlle of Ligne-La Trémoïlle (16 June 1911 – 9 July 2005) 13th Duke of Thouars, 12th Duke of La Trémoïlle, 15th Prince de Tarente, 19th Prince de Talmond and 19th Count of Laval was a Franco-Belgian nobleman and the only child of the French Princess Charlotte de La Trémoille and her Belgian husband, Prince Henri-Florent Lamoral of Ligne.
Upon the death of his mother in 1971, he succeeded to all her French aristocratic titles as well as disputed potential claims to the Kingdom of Jerusalem.