Cognomen كاروس (Carus 
, كاروس) , in the world, is quite a rare surname. The cognomen كاروس is characteristic of Turkey, where it is quite a rare surname, Argentina, where it is a rare surname, and Germany. Measured by absolute frequency, it is the most numerous in Turkey, Argentina, and Brazil. Very seldom, كاروس is the forename as well as the last name.