Rato Dratsang (Dratsang in Tibetan means 'monastery', lit. "monk's nest"), also known as Rato Monastery (sometimes spelled Ratö Monastery), Rato Dratsang is a Tibetan Buddhist monastery of the Gelug or "Yellow Hat" order. For many centuries, Rato Dratsang was an important monastic center of Buddhist studies in Central Tibet.

The 5th Dalai Lama, Ngawang Lobsang Gyatso (1617–1682), referred to Rato Dratsang as Taktsang, or Tiger Nest, because of its fine scholars and debaters. The monastery served as a center for the study of Buddhist philosophy and logic; monks from many other monasteries came to Jang, under Rato’s authority, every year to intensively study and rigorously debate logic.

After 1959, Rato Dratsang was reestablished in a Tibetan Refugee Settlement in Mundgod, Karnataka State, in southern India. The original Rato Dratsang exists in Tibet.

In 1985, the Rato Dratsang Foundation, was established as a 501(c)(3) nonprofit organization to help the monastery flourish and grow.

In 2012, the Dalai Lama appointed a westerner monk, Nicholas Vreeland, to be Rato Dratsang’s new Abbot.

Rato Monastery was founded on the outskirts of Lhasa, the capital city of Tibet, in the 14th century by Tak Pa Zang Bo.

During the 17th century, the Great Fifth Dalai Lama called Rato the "Tiger Nest", commenting in verse:

Khyongla Rato Rinpoche, (1923–2022), founder of The Tibet Center, Kunkhyab Thardo Ling, in New York City, studied at the original Rato Monastery when he was a young monk. In 1959, about 500 monks studied at Rato.