Tambov is a city and the administrative center of Tambov Oblast, central Russia, at the confluence of the Tsna and Studenents rivers, about 4…Tambov is a city and the administrative center of Tambov Oblast, central Russia, at the confluence of the Tsna and Studenents rivers, about 418 km south-southeast of Moscow. With a population of 261,803 as of 2021, Tambov is the largest city, and historical center, of the Tambov Oblast as a whole.