Cognomen Koulberg (Koulberg 
, Кульберг 
) , in the world, is a rare surname. The surname Koulberg is characteristic of Russia, where it is a rare surname, Ukraine, where it is a very rare surname, and France. Much less frequently, Koulberg is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koulberg | France, Spain |
| Кульберг | Russia, Ukraine |
| anna koulberg |
|