All over the world, كالين (Calin 
, Kalin , Kalen 
) is a common largely boy's, but uncommonly feminine given name. The forename كالين is habitual in Aland Islands, where it is quite a common boy's name, Romania, where it is quite a common predominantly male, but very infrequently female name, and Bulgaria, where it is quite a common male name. Not in comparison with a country's population, it is commonest in Romania, India, and the United States. Also, كالين is the last name as well as the forename.