The abbey of Mont-Saint-Michel is an abbey, formerly Benedictine and now entrusted to the Monastic Fraternities of Jerusalem. Classified as a historical monument, it is located on the islet of Mont Saint-Michel, which is itself on the territory of the French commune called Le Mont-Saint-Michel, in the department of Manche in the region of Normandy.

The abbey is the subject of a classification as a historical monument by the list of 1862.