Gentian Hervetus (Hervet) (1499 at Olivet, near Orléans – 12 September 1584 at Reims) was a French Roman Catholic theologian, humanist and controversialist.
Here he became acquainted with Thomas Lupset, an Englishman, whom he later followed to England, where he was charged with the education of a brother of Cardinal Reginald Pole.
He accompanied his scholar to Rome, where he remained some time in the house of Cardinal Pole, occupying himself chiefly with the Latin translation of various Greek Fathers (translations of Clement of Alexandria, John Chrysostom, Theodoret, Palladius of Helenopolis, Nicholas Cabasilas and apostolic canons).
Apparently Hervet made use of and circulated a manuscript of Jean du Tillet containing Balsamon's commentaries on the canons Returning to France, he taught the humanities for a short time at a college in Bordeaux, the College of Guienne, and then went back to Rome to become secretary to Cardinal Cervini, the future Pope Marcellus II.
He is the author of "Le saint, universel et general concile de Trente" (Reims, 1564, Rouen, 1583; Paris, 1584), and numerous controversial pamphlets.