Cognomen Kulber (Kulber 
) , globally, is a very rare surname. The family name Kulber is characteristic of South Africa, where it is a very rare surname, the United States, where it is an extremely rare surname, and Germany. More prevalently, Kulber is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kulber | United Kingdom, South Africa, India, Germany, United States |