Gilles Li Muisis (or Le Muiset) (c. 1272 – 15 October 1352) was a French chronicler and poet. Li Muisis was probably born at Tournai, and in 1289 entered the Benedictine abbey of Saint-Martin in his native city, becoming prior of this house in 1327 and abbot four years later. He only secured the latter position after a contest with a competitor, but he appears to have been a wise ruler of the abbey.
