Cognomen Ngoenkhamkhong (Ngoenkhamkhong 
) , around the world, is an extremely rare family name. The surname Ngoenkhamkhong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ngoenkhamkhong | Thailand |
Peeyanuch, Jeeranant, and Sitthichat