Surname Guellert (Геллерт 
, Guellert 
) , all around the world, is a rare family name. The last name Guellert is characteristic of Kazakhstan, where it is quite a rare surname, Kyrgyzstan, where it is a rare surname, and Russia. Very seldom, Guellert is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Геллерт | Kazakhstan, Kyrgyzstan, Russia, Ukraine |
| Guellert | Germany, United States, Venezuela |