Surname Klamsombut (Klamsombut 
) , in the entire world, is an extremely rare last name. The cognomen Klamsombut is characteristic of Thailand, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Klamsombut | Canada, United States, Thailand |
Charles, Chirasak, and Vachiradej