Tricesimo is a comune (municipality) in the Province of Udine in the Italian region Friuli-Venezia Giulia, located about 70 kilometres (43mi) northwest of Trieste and about 9 kilometres (6mi) north of Udine. As of 31 December 2004, it had a population of 7,471 and an area of 17.5 square kilometres (6.8sqmi).