Surname Khongkhang (โขงเจียม 
, Khongkhang 
) , all over the world, is a very rare cognomen. The family name Khongkhang is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, Khongkhang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| โขงเจียม | Thailand |
| Khongkhang | India, Thailand |