Family name Khamthiang (Khamthiang 
) , in the world, is a very rare cognomen. The family name Khamthiang is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Khamthiang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khamthiang | India, Thailand |