Cognomen ألف (Alf 
, ألف 
) , in the world, is quite a common surname. The last name ألف is habitual in Kuwait, where it is quite a common surname, Saudi Arabia, where it is quite a rare surname, and El Salvador. In absolute terms, it is commonest in Indonesia, Saudi Arabia, and Kuwait. Likewise, ألف is the forename as well as the last name.