Cognomen كارلين (Carlin 
, Karlin , Karlan 
) , in all the world, is a common surname. The last name كارلين is habitual in Slovenia, where it is quite a common surname, Ireland, and Sweden. Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Mexico. Very seldom, كارلين is the forename as well as the last name.