Surname Kilsun (Kilsun 
) , in all the world, is a very rare cognomen. The family name Kilsun is habitual in China, where it is an extremely rare surname, and the United States. Also, Kilsun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kilsun | China, Philippines, Thailand, United States, India |