Surname Stepanjuk (Степанюк 
, Stepanjuk 
) , around the globe, is a common family name. The family name Stepanjuk is habitual in Eastern Europe, particularly Ukraine, where it is quite a common surname, Belarus, and Russia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Степанюк | Azerbaijan, Kazakhstan, Russia, Belarus, Ukraine |
| Stepanjuk | Germany, Ukraine, Estonia, North Macedonia |