Slyudyanka (), is a town in Irkutsk Oblast, Russia. The town is located on the southern coast of Lake Baikal. It sits at the foot of the Khamar-Daban mountain range. It is next to the confluence of the Slyudyanka River and Baikal. The town is divided into two parts by the Transsiberian Railway. Slyudyanka had a population of 19,242 in the 2002 census. In 2010. 18,542 people lived there. It is served by Slyudyanka-I and Slyudyanka-II railway stations. The Circum-Baikal Railway starts from the Slyudyanka-II station.