Selenginsk (Russian: Селенги́нск; Buryat: Сэлэнгын, Selengyn, Mongolian: Сэлэнгэ, Selenge) is an urban locality (an urban-type settlement) in Kabansky District of the Republic of Buryatia, Russia, located at the head of the Selenga River delta about 30 kilometers (19 mi) from Lake Baikal and about 50 kilometers (31 mi) northwest of Ulan-Ude, the capital of the republic.

[2] It was established in 1961 as a Komsomol project around a paper mill.

[citation needed] In post-Soviet times the paper mill was seen as a major source of pollution.

Within the framework of administrative divisions, the urban-type settlement (inhabited locality) of Selenginsk is incorporated within Kabansky District as Selenginsk Urban-Type Settlement[1] (an administrative division of the district).

[10] As a municipal division, Selenginsk Urban-Type Settlement is incorporated within Kabansky Municipal District as Selenginskoye Urban Settlement.