Cognomen Радивонюк (Радивонюк 
) , in all the world, is a very rare last name. The cognomen Радивонюк is habitual in Eastern Europe, particularly Belarus, where it is a rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Радивонюк | Ukraine, Belarus |
Radivoniuk, Radivonyuk, and Radyvonyuk
| радивонюк марія василівна UA (b. 1959) |
|