Bidia Dandaron (Vidyadhara, Russian: Бидия Дандарович Дандарон) (December 28, 1914, Soorkhoi, Kizhinga, Buryatia — October 26, 1974, Vydrino, Buryatia) was a major Buddhist author and teacher in the USSR. He also worked in academic Tibetology, contributed to the Tibetan-Russian Dictionary (1959) and made several translations from Tibetan into Russian. He is mostly remembered as a Buddhist teacher whose students in Russia, Estonia, Latvia, and Lithuania continued both religious and scholarly work, and as an early Buddhist author who wrote on European philosophy, history, and science within a Buddhist framework. Among his students were Alexander Piatigorsky and Linnart Mäll.