Maurice of Carnoet was a 12th-century Cistercian abbot born in Brittany. After finishing his education at the University of Paris, he joined the Langonette Monastery in 1144. Following his studies, he was chosen to lead the Langonette community in 1176. During his tenure, Duke Conan IV of Brittany established the Abbey of Notre-Dame de Carnoët specifically for him. Maurice subsequently served as the inaugural abbot of this new monastery until his death in 1191.