Cognomen Iakobchuk (Якобчук 
, Iakobchuk 
) , throughout the world, is quite a rare surname. The cognomen Iakobchuk is habitual in Ukraine, where it is quite a rare surname, Russia, where it is a rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Якобчук | Kazakhstan, Ukraine, Belarus, Russia |
| Iakobchuk | United States |