Ust-Abakan (Russian: Усть-Абакан, romanized: Ust'-Abakan; Khakas: Ағбан пилтiрi, Ağban piltërë) is an urban-type settlement and the administrative center of Ust-Abakansky District of the Republic of Khakassia, Russia.

Population: 14,578 (2010 Census);[3] 14,913 (2002 Census);[7] 15,831 (1989 Soviet census).

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