CASTROVILLARI, a town of Italy, in the province of Calabria Citra, 7 miles W.N.W. of Cassano. It stands on an eminence surrounded by lofty mountains, and the modern portion contains several handsome streets. The massive castle is supposed to belong to the Norman period. The town carries on a considerable trade in cotton, wine, silk, and fruits, and has about 9400 inhabitants.