Neocottus werestschagini is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins.

[2] It was described by Dmitrii Nikolaevich Taliev in 1935, originally under the genus Abyssocottus.

[3] It is a rare freshwater, deep water-dwelling fish which is endemic to Lake Baikal, Russia.

It dwells at a depth range of 877 to 1,400 metres (2,877 to 4,593 ft), and inhabits silty sand sediments.

[2] The diet of N. werestschagini consists of bony fish, gammarids, and debris.