Cognomen Siminyuk (Siminyuk 
, Симинюк 
) , in the world, is a rare family name. The last name Siminyuk is habitual in Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Siminyuk | United States, Russia |
| Симинюк | Kazakhstan, Ukraine, Russia, Belarus |