Forni di Sotto is a comune (municipality) in the Province of Udine in the Italian region Friuli-Venezia Giulia, located about 120 kilometres (75 mi) northwest of Trieste and about 60 kilometres (37 mi) northwest of Udine. As of 31 December 2004, it had a population of 701 and an area of 93.0 square kilometres (35.9 sq mi).