Surname Byrko (Бирко 
, Бырько , Byrko 
) , in all the world, is a rare family name. The last name Byrko is characteristic of Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Бирко | Belarus, Russia, Kazakhstan, Ukraine |
| Бырько | Russia, Kazakhstan |
| Byrko | Canada, Russia, Germany |
| Бырко | Kyrgyzstan, Russia, Kazakhstan, Ukraine |