or Hadria, in Ancient Geography, the name of two towns in Italy. One in the country of the Veneti, on the river Tartarus, between the Padus and the Athetis, called Atria by Pliny and Ptolemy, but Adrias by Strabo. Another on the river Vomannus, in the territory of the Piceni (to which Antonine's Itinerary from Rome is directed), the country of the ancestors of the emperor Adrian. From which of these the Adriatic sea is denominated, is matter of doubt. A third opinion is, that it is so called from Adrian the son of Ioan, of Italian origin; (Euflathius in Dionysium).