Worldwide, المهدی (Almhdi 
, Sudanu 
, Al-Mahdi 
) is a rare principally boy's, but very infrequently girly forename. The first name المهدی is characteristic of Libya, where it is quite a rare masculine name, Morocco, where it is a rare boy's name, and Israel, where it is a rare epicene name. Not in comparison with a country's population, it is commonest in Morocco, Libya, and India. More prevalently, المهدی is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Almhdi | Saudi Arabia, Yemen, Sudan, Syria, Egypt |
| Sudanu | India, Indonesia, Myanmar |
| Al-Mahdi | Saudi Arabia, Sudan, Egypt, Iraq, Bangladesh |
| المهدی | Sudan, Morocco, Egypt, Iran |