Volyn Oblast or simply Volyn is an oblast (province) in northwestern Ukraine. It borders Rivne Oblast to the east, Lviv Oblast to the south, Poland to the west and Belarus to the north. Its administrative centre is Lutsk. Kovel is the westernmost town and the last station in Ukraine on the rail line running from Kyiv to Warsaw. The population is 1,021,356.

Rivne Oblast, also referred to as Rivnenshchyna, is an oblast (province) in western Ukraine. Its administrative center is Rivne. The surface area of the region is 20,100 square kilometres (7,800 sq mi). Its population is: 1,141,784.