Surname Biayna (Biayna 
, Биайна 
) , worldwide, is a very rare last name. The family name Biayna is characteristic of Armenia, where it is a rare surname, Spain, where it is a very rare surname, and Argentina, where it is an extremely rare surname. Likewise, Biayna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Biayna | Brazil, Spain, Argentina, Armenia, United States |
| Биайна | Russia, Armenia |