Zagórz [ˈzaɡuʂ] (Ukrainian: Загі́р'я; German: Sagor) is a town in Sanok County, Subcarpathian Voivodeship, Poland, on the river Osława in the Bukowsko Upland mountains, located 6.5 kilometres (4.0 mi) south-east of Sanok on the way to Ustrzyki Dolne, 32.4 kilometres (20.1 mi) distance.

Zagorz belonged to the noble Tarnawski family, but in 1490, the village was sold to Piotr Kmita Sobienski.

In 1710, Voivode of Volhynia, Count Jan Adam Stadnicki built in Zagórz a fortified Carmelite monastery, which also served as a hospital for war veterans.

The complex served as a hideout for rebels of the Bar Confederation, and in 1789, when Zagórz already belonged to Austrian Galicia (see Partitions of Poland), the abbey was closed by Joseph II, Holy Roman Emperor.

During the Polish–Ukrainian War (1918-1919), local rail workers built the armoured train Gromobój, which protected the area from Ukrainian raids.