Cognomen Uuganbayar (Uuganbayar 
) , in all the world, is quite a rare surname. The family name Uuganbayar is habitual in Mongolia, where it is quite a common surname, the United States, where it is an extremely rare surname, and China. Also, Uuganbayar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uuganbayar | China, United States, Mongolia |
| erdenebaataryn uuganbayar Mongolian judoka, MN (b. 1974) |
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| udval uuganbayar researcher |
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