Cognomen Градель (Gradel 
, Градель 
) , in the world, is quite a rare family name. The surname Градель is habitual in Switzerland, where it is quite a rare surname, Ivory Coast, and France, where it is a rare surname. In absolute terms, it most frequently occurs in France, Switzerland, and the United States. Much less frequently, Градель is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gradel | Germany, Ivory Coast, Switzerland, United States, France |
| Градель | Kazakhstan, Russia, Ukraine |