Nyingma, often referred to as Ngangyur, is the oldest of the four major schools of Tibetan Buddhism. The Nyingma school is founded on the first lineages and translations of Buddhist scriptures from Sanskrit into Tibetan in the eighth century, during the reign of King Trisong Detsen.

Tibetan Buddhism is a form of Buddhism practiced in Tibet, Bhutan and Mongolia. It also has a sizable number of adherents in the areas surrounding the Himalayas, including the Indian regions of Ladakh, Sikkim, and Arunachal Pradesh, as well as in Nepal. Smaller groups of practitioners can be found in Central Asia, Xinjiang, Inner Mongolia, and some regions of Russia, such as Tuva, Buryatia, and Kalmykia.