Family name Dumitriuk (Dumitriuk 
, Думитрюк 
) , in all the world, is a rare cognomen. The cognomen Dumitriuk is habitual in Ukraine, where it is a rare surname, Russia, where it is a very rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dumitriuk | Germany |
| Думитрюк | Ukraine, Russia |