Surname Khamthuam (Khamthuam 
) , in the entire world, is a very rare cognomen. The surname Khamthuam is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Khamthuam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khamthuam | Thailand, India |