Prieur is: The French word for and derived from the Latin substantive Prior A surname. Notable people with this surname include: Barthélemy Prieur, a French sculptor Denis Prieur (more than one notable person has/had this name) Domaine Jacques Prieur Jean-Louis Prieur Jean-Luc Prieur Philippe Prieur Pierre Prieur Pierre Louis Prieur Sophie Prieur Yves le Prieur