Around the globe, Kilen (Kilen 
, กิเลน 
) is a rare largely boy's, but seldom girly forename. The first name Kilen is habitual in Bulgaria, where it is a rare masculine name, Tanzania, where it is a very rare masculine name, and Thailand. In absolute terms, this name is the most popular in India, Tanzania, and Thailand. Likewise, Kilen is the last name as well as the forename.