Cognomen Gaidel (Gaidel 
, Гайдель 
) , all around the world, is a rare last name. The cognomen Gaidel is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Russia, where it is a very rare surname, and Ukraine. In absolute terms, it is the most numerous in Belarus, Russia, and Germany. Very seldom, Gaidel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gaidel | Belarus, Philippines, Russia, Germany, Colombia |
| Гайдель | Belarus, Ukraine, Kazakhstan, Russia |