Surname Nikonjuk (Nikonjuk 
, Никонюк 
) , in the entire world, is a rare cognomen. The last name Nikonjuk is habitual in Eastern Europe, particularly Belarus, where it is quite a rare surname, Ukraine, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nikonjuk | Germany |
| Никонюк | Russia, Kazakhstan, Ukraine, Belarus |