ATRI, or ATRIA, the ancient Hadria, a town of Naples, in the province of Abruzzo Ulteriore I., situated on a steep mountain 5 miles from the Adriatic, and 18 miles south-east of Teramo. It is the see of a bishop, and has a cathedral, a parish church, several convents and hospitals, and
contains about 6000 inhabitants. In its vicinity are some remarkable ancient excavations.