a town of France, department of Tarn-et-Garonne, is pleasantly situated on the Tarn, here crossed by a handsome bridge, in an extensive valley surrounded by hills covered with wood and vineyards, 15 miles W.N.W. of Montauban, and 97 miles S.E. of Bordeaux. The streets are narrow, crooked, steep, and ill paved, but the houses are well and substantially built. Moissac contains some remains of an ancient abbey, founded in the seventh century, consisting of cloisters, several pointed arches, and the old gateway, which is adorned with bold and fantastic sculpture. The old abbey itself, however, has disappeared, and its site is occupied by a modern edifice of no great elegance. The town contains a large flour-mill, tribunals of first instance and of commerce, and a communal college. There is a considerable trade in flour, oil, wine, linen, wool, &c. Pop. (1851) 10,655.