Family name Lukascuk (Лукащук 
, Lukascuk 
) , in the entire world, is quite a rare last name. The surname Lukascuk is habitual in Ukraine, where it is quite a rare surname, Belarus, where it is a rare surname, and Kazakhstan. Measured by absolute frequency, it most frequently occurs in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Лукащук | Belarus, Russia, Kazakhstan, Ukraine |
| Lukascuk | Czechia, Norway, Belarus |