Buttrio () is a (municipality) in the Regional decentralization entity of Udine in the Italian region of Friuli-Venezia Giulia, with a population of 4,050 people, located about northwest of Trieste and about southeast of Udine.
Buttrio borders the following municipalities: Manzano, Pavia di Udine, Pradamano, Premariacco.
Buttrio is renowned for its wines, as well as for being the place for the headquarters of the multinational company Danieli SpA, the largest supplier of equipment and plants to the metal industry in the world, are located in Buttrio.