Cognomen Koleshchuk (Koleshchuk 
, Колещук 
) , around the globe, is a rare last name. The cognomen Koleshchuk is characteristic of Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Koleshchuk | Russia, United States |
| Колещук | Belarus, Russia, Kazakhstan, Ukraine |