Surname Kupchyk (Купчик 
, Kupchyk 
) , globally, is quite a rare family name. The family name Kupchyk is characteristic of Eastern Europe, particularly Ukraine, where it is quite a rare surname, Belarus, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Купчик | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Kupchyk | Portugal, Canada, United States, Greece, Ukraine |