​MONTREUIL-SOUS-BOIS, a town of northern France in the department of Seine, 5 m. E. of Paris, on the slope and summit of a hill, about 1 m. N. of Vincennes. Pop. (1906), 35,831. Montreuil is specially noted for its extensive peach orchards. The manufactures include paint, oils and varnish, glass and chemical products.