Around the world, كيلين (Kailin 
, Cailin 
, كيلين 
) is quite a rare largely girly, but uncommonly masculine forename. The forename كيلين is characteristic of Ireland, where it is a rare female name, Singapore, and Australia, where it is a rare dominantly girly, but seldom male name. Measured by absolute frequency, it is the most numerous in the United States, South Korea, and Australia. Very seldom, كيلين is the last name as well as the forename.