Tomsk is a city and the administrative center of Tomsk Oblast, Russia, located on the Tom River. One of the oldest towns in Siberia, Tomsk celebrated its 400th anniversary in 2004. Population:

Tomsk originated with a decree from Tsar Boris Godunov in 1604 after , the Tatar duke of , asked for the Tsar's protection against  Kirghiz bandits. The Tsar sent 200 Cossacks under the command of and Gavriil Ivanovich Pisemsky to construct a fortress on the bank of the Tom River, overlooking what would become the city of Tomsk. Toian ceded the land for the fortress to the Tsar.