Cognomen جاهل (جاهل 
, Jahl 
) , in the world, is a rare last name. The last name جاهل is characteristic of Austria, where it is a rare surname, Syria, and Libya. Not in comparison with a country's population, it is the most numerous in Germany, Iraq, and Syria. Also, جاهل is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| جاهل | Sudan, Algeria, Syria, Iraq, Egypt |
| Jahl | India, United States, Germany, Czechia, Austria |