Cognomen Kaubi (Kaubi 
) , all around the world, is a rare family name. The last name Kaubi is characteristic of Estonia, where it is quite a rare surname, Tanzania, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Estonia, Tanzania, and Philippines. Much less frequently, Kaubi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaubi | Brazil, Philippines, Nigeria, Tanzania, Estonia |