Chaulieu () is a commune in the Manche department in Normandy in north-western France. It was created in 1973 by the merger of two former communes: Saint-Martin-de-Chaulieu and Saint-Sauveur-de-Chaulieu.
The commune is made up of the following collection of villages and hamlets, Saint-Sauveur de Chaulieu, Chaulieu, La Rue, L'Insinière and La Françaisière.
Chaulieu contains the source of the river ÃÂgrenne. In addition the river Vire flows through the commune.