Cognomen Герок (Gerok 
, Герок 
) , around the world, is a rare surname. The last name Герок is habitual in Kazakhstan, where it is a rare surname, Germany, and Malaysia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Kazakhstan, Germany, and Russia. Much less frequently, Герок is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gerok | Germany, China, Russia, Malaysia, France |
| Герок | Kyrgyzstan, Kazakhstan, Russia, Ukraine |