Surname Il'Yushenok (Il'Yushenok 
, Ильюшенок 
) , all over the world, is a rare last name. The family name Il'Yushenok is habitual in Belarus, where it is quite a rare surname, Russia, where it is a very rare surname, and Kyrgyzstan. Not in comparison with a country's population, it is the most numerous in Belarus, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Il'Yushenok | Belarus |
| Ильюшенок | Kyrgyzstan, Kazakhstan, Russia, Belarus |