The Saint Silouan Monastery, known as Le Monastère Saint Silouane, is a mixed Orthodox monastery belonging to the Archdiocese of Western European Parishes of the Russian Tradition. It is located in Saint-Mars-de-Locquéme, in the Sarthe department of France. Until 2006, the monastery was under the jurisdiction of the Moscow Patriarchate.

The monastery was founded on August 1, 1990, by Hieromonk Simeon (Kosseck), who was a spiritual son of Archimandrite Sophrony (Sakharov). The monastery is situated approximately 200 km southwest of Paris and was initially part of the Korsun Diocese of the Moscow Patriarchate.

The monastery is housed in an old estate, the buildings of which were in need of repair. Initially, the church was arranged in an old barn, and then the other buildings were set up: a house for monks, a house for nuns, a refectory, a kitchen, a library, workshops, and fifteen guest rooms. A crypt dedicated to the Holy Trinity was created in the monastic building, and a small wooden bell tower was built.

In 2007, after receiving a letter of release from the Moscow Patriarchate, Archimandrite Simeon and the brotherhood transitioned to the jurisdiction of the Western European Exarchate of Russian Parishes.

Currently, the monastery consists of two communities: a male community with three monks and a female community with ten nuns, two of whom are in seclusion, and one novice.

In September 2019, the monastery, along with its abbot Simeon (Kosseck) and Archbishop Ioann (Renneto), returned under the jurisdiction of the Moscow Patriarchate.