Worldwide, Biayna (Biayna 
, Биайна 
) is a very rare mostly feminine, but uncommonly male forename. The forename Biayna is habitual in Eastern Europe, particularly Russia, where it is a very rare girly name. Also, Biayna is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Biayna | Spain, Brazil, United States, Argentina, Armenia |
| Биайна | Armenia, Russia |