Sutrio () is a (municipality) in the Regional decentralization entity of Udine in the Italian region of Friuli-Venezia Giulia, located about northwest of Trieste and about northwest of Udine. As of 31 December 2004, it had a population of 1,392 and an area of .
The municipality of Sutrio contains the (boroughs) of Nojaris and Priola.
Sutrio borders the following municipalities: Arta Terme, Cercivento, Lauco, Ovaro, Paluzza, Ravascletto, Zuglio.