Globally, أيلن (Aylin 
, أيلن) is a common predominantly female, but very seldom masculine forename. The given name أيلن is characteristic of Azerbaijan, where it is quite a common girly name, Panama, where it is quite a rare feminine name, and Bulgaria, where it is quite a rare largely female, but seldom male name. Measured by absolute frequency, it most frequently occurs in Turkey, Germany, and Azerbaijan. Very seldom, أيلن is the last name as well as the forename.