Slyudyanka (Russian: Слюдянка, IPA: [slʲʉˈdʲankə]) is a town and the administrative center of Slyudyansky District of Irkutsk Oblast, Russia, located at the southern tip of Lake Baikal, 126 kilometers (78 mi) south of Irkutsk, the administrative center of the oblast.

[10] The town is a stop and major railroad junction for the Trans-Siberian Railway, and also serves as the starting point for the historic Circum-Baikal Railway.

The town takes its name from the Russian word for mica, reflecting the numerous mineral deposits in the area.

[citation needed] Within the framework of administrative divisions, Slyudyanka serves as the administrative center of Slyudyansky District,[5] to which it is directly subordinated.

[2] As a municipal division, the town of Slyudyanka, together with two rural localities in Slyudyansky District, is incorporated within Slyudyansky Municipal District as Slyudyanskoye Urban Settlement.