Cognomen Salah Mahdi (Salah Mahdi 
) , throughout the world, is an extremely rare family name. The family name Salah Mahdi is habitual in Switzerland, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. More frequently, Salah Mahdi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Salah Mahdi | Iraq, Canada, Switzerland, United Kingdom |