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, France, Poland, United States, India |
| Ghilain | France, Italy, United Kingdom, United States, Belgium |
| กิเลน | Thailand |
| Gilain | Philippines, France, Poland, United States, Belgium |