Cognomen Khamloonvylaivong (Khamloonvylaivong 
) , throughout the world, is a rare family name. The last name Khamloonvylaivong is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khamloonvylaivong | Laos |