Family name Gucko (Gucko 
, Гуцко 
) , worldwide, is a rare cognomen. The surname Gucko is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Russia, where it is a rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Gucko | Brazil |
| Гуцко | Kazakhstan, Russia, Ukraine, Belarus |