Fagagna () is a (municipality) in the Regional decentralization entity of Udine in the Italian region Friuli-Venezia Giulia, located about northwest of Trieste and about northwest of Udine. As of 2011, it had a population of 6,279 and an area of . It is one of ("The most beautiful villages of Italy").
The municipality of Fagagna contains the (boroughs) Ciconicco, Villalta, San Giovanni in Colle, Battaglia, and Madrisio. Fagagna borders the following municipalities: Basiliano, Colloredo di Monte Albano, Martignacco, Mereto di Tomba, Moruzzo, Rive d'Arcano, San Vito di Fagagna.
It is well known among nature-lovers for being the municipality which holds the nature reserve which bred the critically endangered Northern Bald Ibis or Waldrapp, from which 37 of the many individuals present were released in 2014 (under somewhat mysterious circumstances).
The local festival held every September includes two traditional events which attract tourists: the donkey race (since 1891), and the , theatre performances given by the inhabitants of the four , the districts of the town, on the main square.