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Cognomen Baiar (Баяр
, Baiar
, Байар
) , throughout the world, is a rare family name. The cognomen Baiar is habitual in Armenia, where it is a rare surname, Belarus, and Georgia. In absolute terms, it is commonest in Russia, India, and Armenia. Likewise, Baiar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Баяр | Ukraine, Armenia, Russia, Belarus, Kyrgyzstan |
| Baiar | India, United States, Georgia, France, Brazil |
| Байар | Ukraine, Russia, Kyrgyzstan, Belarus |