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 | Kazakhstan, Russia, Ukraine, Belarus |
| Бырько | Kazakhstan, Russia |
| Byrko | Germany, Canada, Russia |
| Бырко | Kyrgyzstan, Kazakhstan, Russia, Ukraine |