Cognomen اهم (Ahm 
, Ohm 
, اهم 
) , in the world, is a common last name. The family name اهم is habitual in Pakistan, where it is quite a common surname, Brunei, and Denmark, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in Pakistan, Germany, and South Korea. Likewise, اهم is the forename as well as the last name.