Cognomen Khaophuak (Khaophuak 
) , globally, is a rare last name. The surname Khaophuak is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Khaophuak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khaophuak | Thailand |