Öndör Gegeen Zanabazar (, , "High Saint Zanabazar"; 1635–1723), born Eshidorji ( Mongolian: Ишдорж, Işdorj; ), was the sixteenth Jebtsundamba Khutuktu ( Mongolian: Жавзандамба хутагт/Jawzandamba hutagt, ) "reincarnation of Jebtsundamba" and the first Bogd Gegeen, or supreme spiritual authority, of the Gelugpa (Yellow Hat) lineage of Tibetan Buddhism in Mongolia.
The son of a Mongol Tüsheet Khan, Zanabazar was declared spiritual leader of Khalkha Mongols by a convocation of nobles in 1639 when he was just four years old. The 5th Dalai Lama (1617-1682) later recognized him as the reincarnation of the Buddhist scholar Taranatha and bestowed on him the Sanskrit name Jñānavajra ( Sanskrit: ज्ञानवज्र, Zanabazar in Mongolian) meaning “thunderbolt of wisdom”. Over the course of nearly 60 years, Zanabazar advanced the Gelugpa school of Buddhism among the Mongols, supplanting or synthesizing Sakya or " Red Hat" Buddhist traditions that had prevailed in the area, while strongly influencing social and political developments in 17th century Mongolia. His close ties with both Khalka Mongol leaders and the devout Kangxi Emperor facilitated the Khalkha's submission to Qing rule in 1691.
In addition to his spiritual and political roles, Zanabazar was a polymath - a prodigious sculptor, painter, architect, poet, costume designer, scholar, and linguist, who is credited with launching Mongolia's seventeenth century cultural renaissance. He is best known for his intricate and elegant Buddhist sculptures created in the Nepali-derived style, two of the most famous being the White Tara and Varajradhara, sculpted in the 1680s. To facilitate translation of sacred Tibetan texts, he created the Soyombo script from which sprang the Soyombo that later became a national symbol of Mongolia. Zanabazar used his artistic output to promote Buddhism among all levels of Khalkha society and unify Khalkha Mongol tribes during a time of social and political turmoil.
Zanabazar is an extinct genus of troodontid theropod dinosaur from the Late Cretaceous of Mongolia. The genus was originally named by Rinchen Barsbold as a species of Saurornithoides, S. junior. In 2009 it was reclassified as its own genus, named after the first spiritual figurehead of Tibetan buddhism, Zanabazar. The holotype, GIN 100–1, includes a skull, vertebrae, and right hindlimb. Zanabazar was one of the most derived troodontids, and the second largest after Troodon.
Zanabazar or Dzanabadzar , is a novel by Mongolian author Sengiin Erdene. It has been described as one of the "most popular historical novels of its period" in Mongolia.