Yugansky Nature Reserve, Protected wilderness in Khanty-Mansi Autonomous Okrug, Russia.

Yugansky Nature Reserve covers 648,636 hectares in the Bolshoy Yugan basin, between the Negusyakh and Maly Yugan rivers, in the Surgutsky District of the Khanty-Mansi Autonomous Okrug. Spruce forests with cedar and fir cover 36% of the territory; the rest is swamp. The terrain is narrow river valleys and vast wetlands, with a 2 km buffer zone of 93,893 hectares around the reserve.

Yugansky Nature Reserve was created on 31 May 1982 in the interfluve of the Negusyakh and Maly Yugan rivers, right tributaries of the Bolshoy Yugan. It covers 648,636 hectares, with a 2 km buffer zone of 93,893 hectares around it. Its headquarters were placed in the village of Ugut.

The reserve's headquarters is in Ugut, a Khanty village on the Bolshoy Yugan where a small nature museum run by the reserve presents the local flora and fauna to the public. The reserve also opened an ecotourist route to one of its marsh zones, visited by prior arrangement.

Access is strictly regulated and visitors must contact the administration in advance to arrange guided visits. Advanced planning is essential since the remote location and strict protection rules do not allow for spontaneous visits.

The reserve's flora list is short for the middle taiga: 320 vascular plant species in 67 families, with sedges (30 species) and composites (27) the largest groups. Four species are in the Russian Red Book, among them the lichen Lobaria pulmonaria and the leafless orchid Epipogium aphyllum, both found in the dark coniferous forests.