Bay-Tayginsky District is an administrative and municipal district, one of the seventeen in the Tuva Republic, Russia. It is located in the west of the republic. The area of the district is 7,922.82 square kilometers (3,059.02 sq mi). Its administrative center is the rural locality of Teeli. Population: 10,803 (2010 Census); 12,321 ; 13,401 (1989 Soviet census). The population of Teeli accounts for 31.4% of the district's total population.