Last name Рыбачёнок (Рыбачёнок 
) , across the world, is a rare surname. The cognomen Рыбачёнок is characteristic of Belarus, where it is quite a rare surname, Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Рыбачёнок | Kazakhstan, Russia, Belarus |