Surname Kapushchak (Kapushchak 
, Капущак 
) , throughout the world, is a rare family name. The cognomen Kapushchak is characteristic of Ukraine, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kapushchak | Russia, Brazil, France, United States, Ukraine |
| Капущак | Kazakhstan, Russia, Ukraine |
| ivan oleksiĭovych kapushchak (1807-1868) (b. 1807) |
|