Tver Oblast is a federal subject of Russia. Its administrative center is the city of Tver. From 1935 to 1990, it was known as Kalinin Oblast. Population: 1,353,392 (2010 Russian census).

Tver is a city and the administrative centre of Tver Oblast, Russia. It is situated at the confluence of the Volga and Tvertsa rivers. Tver is located 180 kilometres (110 mi) northwest of Moscow. Population: 416,216 (2021 Census).