Surname Kilsan (Kilsan 
) , all around the world, is a very rare family name. The cognomen Kilsan is habitual in Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname, and Venezuela. More frequently, Kilsan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kilsan | Spain, Brazil, United States, India, Venezuela |