Surname Radivonchik (Radivonchik 
, Радивончик 
) , around the world, is a rare last name. The last name Radivonchik is characteristic of Belarus, where it is quite a rare surname, Russia, where it is a very rare surname, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Radivonchik | Argentina, Russia, Belarus |
| Радивончик | Russia, Ukraine, Belarus |