Sainte-Marie-Outre-l'Eau is a commune in the Calvados department in the Normandy region in northwestern France.

The name roughly translates as Saint Mary beyond the Water.

The village is located approximately 1 kilometre east from Pont-Farcy, on the left bank of the river Vire.

Other nearby communes include Pont-Bellanger and Beaumesnil.

The village is located close to the Calvados tourist attraction Grotte de Bion