Georges Thierry d'Argenlieu, in religion Father Louis of the Trinity, O.C.D. (7 August 1889 - 7 September 1964), was a Discalced Carmelite friar and priest, who was also a diplomat and French Navy officer and admiral; he became one of the major personalities of the Free French Forces and the Forces navales françaises libres. He was the chancellor of the Ordre de la Libération.