Surname Kaseumsouk (Kaseumsouk 
) , in the world, is a rare cognomen. The last name Kaseumsouk is habitual in Laos, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Likewise, Kaseumsouk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaseumsouk | Laos, United States |