Family name กิเลน (Kilen 
, Ghilain 
, กิเลน 
) , in the entire world, is quite a rare cognomen. The cognomen กิเลน is habitual in Norway, where it is quite a rare surname, Belgium, and France, where it is a rare surname. In absolute terms, it is commonest in Belgium, France, and the United States. Very seldom, กิเลน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kilen | Norway, Poland, India, France, United States |
| Ghilain | Belgium, United Kingdom, France, Italy, United States |
| กิเลน | Thailand |
| Gilain | Belgium, Philippines, Poland, France, United States |