Monastyryska (Ukrainian: Монастириська; Polish: Monasterzyska) is a town in Ternopil Oblast, Ukraine. It is the administrative center of the Monastyryska Raion. In 2001, the population was 6,344. The town is situated on the river Koropets, 15 km (9.32 mi) from Buchach, 140 km (86.99 mi) south east from Lviv, on the road between Berezhany and Ivano-Frankivsk. The river Koropets forms a wide lake.