Cognomen Khunthothom (Khunthothom 
) , all over the world, is a very rare family name. The family name Khunthothom is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khunthothom | Thailand |
Nara, Salil, Pimnara, Piyapong, and Praphaisri