Cognomen هادئ (هادئ 
) , across the world, is quite a rare family name. The family name هادئ is habitual in Iraq, where it is quite a rare surname, Sudan, where it is a rare surname, and Syria. Not in comparison with a country's population, the name is most common in Iraq, Sudan, and Egypt. Very seldom, هادئ is the forename as well as the last name.