Cognomen Jadher (Jadher 
) , throughout the world, is a rare last name. The cognomen Jadher is habitual in Nicaragua, where it is quite a rare surname, Saudi Arabia, where it is a very rare surname, and Colombia. Likewise, Jadher is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jadher | Belgium, Nicaragua, Colombia, Saudi Arabia, Brazil |