Leutfridus[1] was a French monk and saint of the eighth century.
Leutfridus studied at Condat Abbey and at Chartres, and was for a time a teacher at Evreux. A Benedictine, he was also a spiritual student of Saint Sidonius of Saint-Saëns. He spent time as a hermit at Cailly and at Rouen; he founded the abbey of La Croix-Saint-Qu'en around 690, and served as its first abbot. The abbey was later renamed Saint-Leufroy in his honor.
Leutfridus died in 738; his feast day is June 21.
Leutfridus was the brother of Saint Agofredus.