Throughout the world, Otgonbayar (Otgonbayar 
) is a rare epicene first name. The first name Otgonbayar is habitual in Eastern Asia, particularly Mongolia, where it is quite a common gender-neutral name. Also, Otgonbayar is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Otgonbayar | Mongolia, Malaysia, Australia, United States, China |
| otgonbayar unursaikhan researcher |
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| otgonbayar dugerjav researcher (ORCID 0000-0003-1490-3887) |
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| otgonbayar otogo uuye Ph.D. The Pennsylvania State University 2008 |
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| otgonbayar ershuu |
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| otgonbayar oyunbaatar association football player, MN (b. 1993) |
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