Radyvyliv (Ukrainian: Радивилів, Russian: Радивилов, Polish: Radziwiłłów) is a small city in the Rivne Oblast (province) of western Ukraine. It is the administrative center of the Radyvyliv Raion (district), and is located south-west of the oblast capital, Rivne, near European route E40. The nearest larger cities are Dubno, and Brody; the latter being 10 km (6 mi) away. In Soviet times, from 1939 to 1992, the city was known as Chervonoarmiysk (Ukrainian: Червоноармійськ, Russian: Червоноармейск).

The current estimated population is 10,311 (as of 2001).

Administrative divisions of Rivne Oblast, Ukraine Administrative center:  Rivne Raions Berezne · Demydivka · Dubno · Dubrovytsia · Hoshcha · Korets · Kostopil · Mlyniv · Ostroh · Radyvyliv · Rivne · Rokytne · Sarny · Volodymyrets · Zarichne · Zdolbuniv Cities Berezne · Dubno · Dubrovytsia · Korets · Kostopil · Kuznetsovsk · Ostroh · Radyvyliv · Rivne · Sarny · Zdolbuniv Urban-type settlements Demydivka · Hoshcha · Mlyniv · Rokytne · Sosnove · Tuczyn · Zarichne · more... Villages Mezhirichi · Velyki Ozera · Yasynets · more...

Coordinates: 50°08′N 25°15′E / 50.133°N 25.25°E / 50.133; 25.25