Tarthang Tulku (Tibetan: དར་ཐན་སྤྲུལ་སྐུ་རིན་པོ་ཆེ, Wylie: Dar-than Sprul-sku Rin-po-che) (born 1934) is a Tibetan teacher (lama) in the Nyingma tradition who lives in America, where he works to preserve the art and culture of Tibet. He oversees various projects including Dharma Publishing, Yeshe-De, Tibetan Aid Project, and the construction of the Odiyan Copper Mountain Mandala. Tarthang Tulku introduced Kum Nye into the West.

As one of the last remaining lamas to have received a complete Buddhist education in pre-1959 Tibet, Tarthang Tulku left Tibet and taught in Benares, India, until emigrating to America in 1969 with his wife, the poet Nazli Nour. After settling in Berkeley, CA they established the Tibetan Aid Project (TAP) which serves the needs of the Tibetan refugee community.

In 1963, Tarthang Tulku founded Dharma Publishing in Varanasi, India. In 1971, the publishing house moved to California. The main purpose of Dharma Publishing is to preserve and distribute Tibetan Buddhist teachings and to bring these teachings to the West.