Lensky District, Sakha Republic

Lensky District (; ) is an administrative and municipal district (raion, or ulus), one of the thirty-four in the Sakha Republic, Russia. It is located in the southwest of the republic and borders with Mirninsky District in the north, Suntarsky District in the northeast, Olyokminsky District in the east, and with Irkutsk Oblast in the south and west. The area of the district is . Its administrative center is the town of Lensk. Population: 38,669 (2002 Census); The population of Lensk accounts for 62.8% of the district's total population.