Nicholas Trivet (or Trevet, as he himself wrote) (c. 1257 – c. 1334) was an English Anglo-Norman chronicler.
Trivet was born in Somerset and was the son of Sir Thomas Trevet (died 1283), a judge who came of a Norfolk or Somerset family. Nicholas became a Dominican friar in London, and studied first at Oxford and later in Paris, where he first took an interest in English and French chronicles.
Little is known of the greater part of his life except that at one time he was prior of his order in London, and at another he was teaching at Oxford, also that he was at Santa Maria Novella in Florence.
Trivet was the author of a large number of theological and historical works and commentaries on the classics, more especially the works of Seneca. A large number of these exist in MS. in various libraries, but only two appear to have been printed, one being the work by which he is chiefly remembered, the chronicle of the Angevin kings of England; the other was the last twelve books of his commentary on St. Augustine's treatise De civitate dei. The full title of the former work is Annales sex regum Angliae qui a comitibus Andegavensibus originem traxerunt, an important historical source for the period between 1135 and 1307, containing a specially valuable account of the reign of Edward I, who was his contemporary. Trivet also wrote a chronicle in French, parts of which were printed by Henry Spelman. This contains the tale of Constance, from which the popular tale-type derived its name, and from which Chaucer is believed to have obtained his Man of Law's Tale.