Cognomen Onyshenko (Onyshenko 
, Онишенко 
) , all around the world, is a rare surname. The family name Onyshenko is habitual in Kyrgyzstan, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Onyshenko | Ukraine, Israel |
| Онишенко | Kyrgyzstan, Kazakhstan, Russia, Ukraine |