Coordinates: 51°43′N 103°41′E / 51.717°N 103.683°E
Kultuk (Russian: Култук) is an urban locality (a work settlement) in Slyudyansky District of Irkutsk Oblast, Russia, located on the southwestern tip of Lake Baikal. Population: 3,728 (2010 Census);4,262 (2002 Census);5,370 (1989 Census).
It was established in 1647.