Last name Kapčuk (Kapčuk 
, Капчук 
) , throughout the world, is a rare family name. The surname Kapčuk is habitual in Ukraine, where it is a rare surname, Belarus, and Kazakhstan. Not in comparison with a country's population, it most frequently occurs in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Kapčuk | Czechia |
| Капчук | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| jan kapčuk (b. 1934) |
|