Family name Khamkaewduangsawang (Khamkaewduangsawang 
) , in all the world, is an extremely rare cognomen. The surname Khamkaewduangsawang is habitual in Northern America, particularly the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khamkaewduangsawang | United States |