The Bystrytsia (Ukrainian: Бистриця; Polish: Bystrzyca) is a river, a right tributary of the Dniester which flows through Ivano-Frankivsk Raion, Ivano-Frankivsk Oblast.

Bystrytsia river is formed by confluence of Bystrytsia of Solotvyn and Bystrytsia of Nadvirna.

The Bystrytsia-Nadvirnyanska, a typical mountain river; in its lower course (Subcarpathia), a river of the plains, has a length of 94 km (58 mi) and a drainage basin of 1,580 km² (610 sq mi), and the Bystrytsia-Solotvynska half has a length of 82 km (51 mi) and a drainage basin of 795 km² (307 sq mi).

Both of the branches, typical mountain rivers, of the Bystrytsia river take their source in the Gorgany Mountains of the Carpathian mountain range^[1] in the Ukrainian province of Ivano-Frankivsk. With the city of Ivano-Frankivsk, the administrative center of the Ivano-Frankivsk Oblast, the two branches merge, and then flow 17 km (11 mi)^[2] south of Halych near the town of Yezupil, where the river finally flows into the Dniester.

The name, Bystrytsia, comes from the Slavic word "бистрий" - bystry, which is translated as fast or fast moving.