Kobyaysky District (Russian: Кобяйский улу́с; Yakut: Кэбээйи улууһа, Kebeeyi uluuha, [kebeːji uluːha]) is an administrative[1] and municipal[6] district (raion, or ulus), one of the thirty-four in the Sakha Republic, Russia.

[citation needed] In 1928, as the coal mining operations got underway, the miners established the new village of Sangar.

[3] In 1938, thermal power stations operating on coal were built in Sangar, and the first library opened in Kobyay.

[3] In 1944, the district newspaper Sana oloh (renamed Leninets in 1962 and Dabaan in 1993) was established, and in 1945 an airport was commissioned, 5 kilometers (3.1 mi) from Sangar.

[3] The first savings bank opened in 1946 and on April 16, 1947, Sangar commissioned a new steam turbine power plant.

[1] It is divided into one settlement (an administrative division with the administrative center in the urban-type settlement (inhabited locality) of Sangar) and eleven rural okrugs (naslegs), all of which comprise twenty-two rural localities.

*Administrative centers are shown in bold The leading industry is agriculture, with cattle, pig, horse breeding, reindeer husbandry, poultry farming, cellular farming, fisheries, mining, and furs forming much of the main economic activity in the district.

[9] The district has notable deposits of gold, silver, lead, zinc, gas, coal, and building materials.

The district has a number of facilities such as printing houses, clubs, a theater in Kobyay, and vocational, educational, sports, and children's art schools.