Corno di Rosazzo  Corno di Rosazzo () is a "comune" (municipality) in the Province of Udine in the Italian region Friuli-Venezia Giulia, located about northwest of Trieste and about southeast of Udine. , it had a population of 3,313 and an area of . Corno di Rosazzo borders the following municipalities: Cividale del Friuli, Cormons, Dolegna del Collio, Manzano, Premariacco, Prepotto, San Giovanni al Natisone.