ORSOVA (Old and New), the name of two towns on the Danube, the former belonging to Austria, and the latter to Turkey. Old Orsova stands on the left bank of the river, 90 miles S.E. of Temesvar, in the Banat Military Frontier. It is fortified, and has manufactories of leather. Pop. 1000. New Orsova, which belongs to the province of Servia, stands on an island in the river W. of Old Orsova, and is strongly fortified. Pop. 2800. (See DANUBE.)