a town in the department of Constantza Rumania, situated on the Black Sea, and at the mouth of a small stream, the Mangalia, io m. N. of the Bulgarian frontier. Pop. (1900), 1 459. The inhabitants, among whom are many Turks and Bulgarians, are mostly fisherfolk. Mangalia is to be identified with the Thracian Kallatis or Acervetis, a colony of Miletus which continued to be a flourishing place to the close of the Roman period. In the 14th century it had 30,000 inhabitants, and a large trade with Genoa.