Family name Корук (Корук 
) , worldwide, is a very rare cognomen. The surname Корук is habitual in Kyrgyzstan, where it is a very rare surname, Ukraine, and Kazakhstan. Measured by absolute frequency, this name is the most popular in Russia, Ukraine, and Kyrgyzstan.
| VARIANT | COUNTRY |
|---|---|
| Корук | Kyrgyzstan, Kazakhstan, Russia, Ukraine |