Family name كلاف (كلاف 
, Klaff 
) , in the entire world, is a rare surname. The family name كلاف is habitual in Sweden, where it is a rare surname, Germany, and South Africa. Not in comparison with a country's population, it is the most numerous in the United States, Germany, and South Africa. Very seldom, كلاف is the forename as well as the last name.