Resia (Resian: Rèsije, Slovene: Rezija) is a comune (municipality) in the Province of Udine in the Italian region of Friuli-Venezia Giulia. It is located in the Alpine valley with the same name, about 90 kilometres (56 mi) northwest of Trieste and about 35 kilometres (22 mi) north of Udine, on the border with Slovenia and around 20 kilometres (12 mi) from the border with Austria. As of 1 January 2015, it had a population of 1,048 and an area of 119.0 square kilometres (45.9 sq mi).