Amaro is a comune (municipality) in the Regional decentralization entity of Udine, in the Italian region of Friuli-Venezia Giulia. It is located about 100 kilometres (62 mi) northwest of Trieste, the regional capital, and about 35 kilometres (22 mi) northwest of Udine, the capital of the decentralization entity to which it belongs.
The municipality lies in the northwestern part of Friuli-Venezia Giulia, a region in northeastern Italy. Its position places it within the hinterland of Udine, in an area of the region that extends toward the mountains to the north.
Amaro is one of the many comuni that make up the Regional decentralization entity of Udine, the administrative body through which Friuli-Venezia Giulia governs its local affairs. The comune is distinct from other places bearing the name Amaro.