Cognomen جهاز (جهاز 
, Jhaz 
) , in all the world, is a very rare last name. The surname جهاز is habitual in Sudan, where it is a rare surname, Philippines, where it is an extremely rare surname, and India. More frequently, جهاز is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| جهاز | Yemen, Algeria, Iraq, Egypt, Sudan |
| Jhaz | Philippines, Kuwait, United Arab Emirates, India, Saudi Arabia |