Family name Кільян (Kiljan 
, Кільян 
) , all over the world, is a rare cognomen. The last name Кільян is habitual in Iceland, where it is quite a rare surname, Poland, and Netherlands, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Poland, Netherlands, and the United States. Likewise, Кільян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kiljan | Germany, India, United States, Poland, Netherlands |
| Кільян | Ukraine |
| кільян орест васильович Ukrainian military personnel, UA |
|