JAPYDIA, in Ancient Geography, a western district of Illyricum, anciently threefold; the first Japydia extending from the springs of the Timavus to Istria; the second, from the river Arfa to the river Tedanus; and the third, called Inalpina, situated in Mount Albinus and the other Alps, which run out above Istria. Japodes, or Japydes, the people. Now constituting the south part of Carniola, and the west of Austrian Croatia.