Last name בלאגה (Blaga 
, בלאגה 
) , across the world, is a common cognomen. The cognomen בלאגה is habitual in Romania, where it is quite a common surname, North Macedonia, and Hungary, where it is quite a rare surname. In absolute terms, it is commonest in Romania, North Macedonia, and Italy. Much less frequently, בלאגה is the forename as well as the last name.