Mount Nyenchen Tanglha, Sacred mountain in Damxung County, Tibet, China

Mount Nyenchen Tanglha is the highest peak of the Nyenchen Tanglha Mountains, which with the Gangdise range form the Transhimalaya. Its main summit rises to 7,162 m, with two subsidiary summits above 7,000 m on a northwest–southeast ridge. It stands south of Namtso Lake in Damxung County, Lhasa Prefecture, on the watershed between the Yarlung Tsangpo and the Changtang basins.

The first ascent of the 7,162 m main summit was made on 8 May 1986 by members of a Japanese expedition. The other two summits above 7,000 m on the northwest–southeast ridge were climbed between 1986 and 1995.

In Tibetan mythology Nyenchen Tanglha is the most influential deity in much of northern Tibet, a bodhisattva on the eighth level and protector of the Nyingma teachings. He is shown in mortal form riding a white horse, wearing a satin dress and holding a horse whip and a Buddhist rosary. The Tibetan name means "great Nyain, god of the heavenly plains", and he is also known as Thanglha Yashur, Dorje Barwatsel and Dorje Chorabtsel.

Visitors require advanced ice climbing skills and specialized equipment suited to high-altitude glacier terrain. The best season runs from May through September when weather conditions are generally most favorable for mountaineering attempts.

The mountain forms a natural watershed dividing the Yarlung Tsangpo River to the south from the closed basins of the Changtang plateau to the north. This hydrological role makes it a key geographic marker for understanding how water flows across the region.