Cognomen Khanhonglouang (Khanhonglouang 
) , all over the world, is a rare surname. The last name Khanhonglouang is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname, and Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khanhonglouang | Laos, Thailand |