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 | Ukraine, Kazakhstan, Russia, Belarus, Kyrgyzstan |
| Kupchyk | Ukraine, United States, Greece, Portugal, Canada |