The Tyva Republic (; , Tyva Respublika, ), Tyva or Tuva (, ), is a federal subject of Russia (a republic, also defined in the Constitution of the Russian Federation as a state ). It lies in the geographical center of Asia, in southern Siberia. The republic borders the Altai Republic, the Republic of Khakassia, Krasnoyarsk Krai, Irkutsk Oblast, and the Republic of Buryatia in Russia and Mongolia to the south. Its capital is the city of Kyzyl. Population: 307,930 (2010 Census).