Kyun-Tas (Russian: Кюн-Тас; Yakut: Күн Таас) is a mountain range in the Sakha Republic, Far Eastern Federal District, Russia.

[2] The Kyun-Tas is one of the mountain areas of Yakutia where there are kigilyakh rock formations.

[8] The main ridge stretches in a roughly southeast/northwest direction west of the eastern slopes of the Selennyakh Range for about 100 km (62 mi).

[8] The 243 kilometres (151 mi) long Nuchcha, a tributary of the Chondon, originates in the range.

Also the 170 kilometres (110 mi) long Baky, one of the rivers that forms the Uyandina tributary of the Indigirka, has its source in Lake Baky, located at the junction of the Kyun-Tas and the western end of the Polousny Range.