Surname Yanchuk (Янчук 
, Yanchuk 
) , throughout the world, is a common family name. The family name Yanchuk 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 |
|---|---|
| Янчук | Ukraine, Kazakhstan, Russia, Belarus, Bulgaria |
| Yanchuk | United States, Russia, Belarus, Poland, Canada |
| serhiy yanchuk mathematician |
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| polina yanchuk Ukrainian association football player, UA |
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| dmytro yanchuk Ukrainian footballer |
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