Cognomen Olechko (Олешко 
, Olechko 
) , around the globe, is quite a common surname. The cognomen Olechko is characteristic of Eastern Europe, particularly Ukraine, where it is quite a rare surname, Belarus, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Олешко | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Olechko | Canada, United States |