Surname Kachanyuk (Kachanyuk 
, Качанюк 
) , all over the world, is a rare cognomen. The cognomen Kachanyuk is characteristic of Eastern Europe, particularly Ukraine, where it is quite a rare surname, Belarus, where it is a rare surname, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kachanyuk | Russia, Spain, United States |
| Качанюк | Belarus, Russia, Kazakhstan, Ukraine |