At͡sagatskiĭ dat͡san, Buddhist monastery in Naryn-Atsagat, Russia.

Atsagatsky Datsan is a Gelug Buddhist monastery on the western edge of Naryn-Atsagat village in Buryatia's Zaigrayevsky District. Its main Tsogchen-dugan, built after 1877 on higher ground at Enger-Tugla, had a stone ground floor in Tibetan style and two wooden upper floors in Chinese style. The wooden printing house northeast of the monastery wall still stands.

Founded in 1825 by the Shuluta River near the ulus of Atsagat, the datsan's first wooden temple was built without official permission. The Irkutsk governor authorised worship on 5 May 1831. In 1877 the monastery moved three versts to Mount Enger-Tugla, where a three-storey Tsogchen-dugan combining Tibetan and Chinese styles was built. It was closed on 15 August 1936, and the Dalai Lama blessed its revival in 1991.

The monastery serves as an active center of Buddhist practice in Russia, where monks conduct daily rituals and visitors can witness religious ceremonies. The community keeps Tibetan traditions alive in this remote mountain setting, making Buddhist culture accessible to the surrounding region.

The monastery sits in a remote mountain area and is best visited during warmer months when road conditions are reliable. Visitors should expect basic accommodations and wear respectful clothing when entering religious spaces.

The wooden printing house northeast of the monastery wall survives from the 19th century. It issued 46 titles in Tibetan and 47 in Mongolian, and also printed woodblock images of deities and khyi-morin wind-horse prints.