Cognomen Sunaj (Sunaj 
) , all around the world, is a rare surname. The last name Sunaj is habitual in North Macedonia, where it is quite a common surname, Azerbaijan, where it is quite a rare surname, and Germany, where it is an extremely rare surname. In absolute terms, it is commonest in North Macedonia, Azerbaijan, and India. Likewise, Sunaj is the forename as well as the last name.