Cognomen Крух (Kruh 
, Krux 
, Крух 
) , all around the world, is a rare surname. The family name Крух is habitual in Slovenia, where it is quite a rare surname, Czechia, where it is a rare surname, and Belgium. Measured by absolute frequency, it is the most numerous in Germany, the United States, and France. Very seldom, Крух is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kruh | Czechia, France, Colombia, United States, Slovenia |
| Krux | Germany, Belgium, Colombia, United States, France |
| Крух | Kazakhstan, Russia, Ukraine |