Family name Guelbart (Guelbart 
, Гельбарт 
) , around the globe, is a very rare cognomen. The surname Guelbart is habitual in Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Guelbart | United States |
| Гельбарт | Russia |