Last name Mhdi (مهدي 
, مهدی 
, Mhdi 
) , across the world, is a widespread cognomen. The cognomen Mhdi is characteristic of Iraq, where it is a common surname, Sudan, where it is quite a common surname, and Yemen (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Iraq, Sudan, and Egypt. More frequently, Mhdi is the forename as well as the last name.