East European Plain
Bryansk Oblast lies in western European Russia in the central to western parts of the East European Plain, on the divide between the Desna and Volga basins. The oblast borders with Smolensk Oblast in the north, Kaluga Oblast in the northeast, Oryol Oblast in the east, Kursk Oblast in the southeast, Chernihiv and Sumy Oblasts of Ukraine in the south, and with Gomel and Mogilev Oblasts of Belarus in the west.