Surname Ianenko (Яненко 
, Ianenko 
) , all over the world, is quite a common cognomen. The family name Ianenko is characteristic of Eastern Europe, particularly Moldova, where it is quite a rare surname, Ukraine, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Яненко | Kazakhstan, Russia, Belarus, Moldova, Ukraine |
| Ianenko | Poland |