Kongar-ool Borisovich Ondar (Tuvan: Ондар Коңгар-оол Борис оглу, Ondar Konggar-ool Boris oglu, [ɔnˈdɑr kɔŋˈɡɑrɔːɮ bɐˈris ɔˈɡlu], Russian: Конгар-оол Борисович Ондар; 29 March 1962 – 25 July 2013) was a master Soviet and Russian Tuvan throat singer and a member of the Great Khural of Tuva.

In 1992, he won an international throat-singing contest, which brought invitations to perform in Europe and the United States and began his singing career.

[2] Considered a living treasure by the Republic of Tuva, Ondar was granted a stipend and an apartment for the musical skills he possessed.

Jovial and personable, Ondar is probably the best-known face of khöömei (Tuvan: хөөмей) throat singing to Westerners, appearing on the Late Show with David Letterman, the Oscar-nominated documentary Genghis Blues, and in interviews for CNN and other television networks.

Pena, who had learned throat singing before coming to Tuva, was the subject of the documentary Genghis Blues in which Ondar was also featured.