Surname كاريوس (Carius 
, Karius 
, كاريوس) , in the world, is quite a rare family name. The family name كاريوس is habitual in Germany, where it is quite a rare surname, Brazil, where it is a rare surname, and Australia. In absolute terms, it is the most numerous in Germany, Brazil, and the United States. Much less frequently, كاريوس is the forename as well as the last name.