Cognomen Gizhko (Gizhko 
, Гижко 
) , globally, is a rare surname. The cognomen Gizhko is habitual in Ukraine, where it is quite a rare surname, Russia, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Gizhko | Spain, Ukraine, Russia |
| Гижко | Kazakhstan, Ukraine, Russia |