Last name Khamvongsa (Khamvongsa 
) , around the globe, is quite a rare family name. The cognomen Khamvongsa is habitual in Laos, where it is quite a common surname, France, where it is a rare surname, and Canada. In absolute terms, this name is the most popular in Laos, the United States, and France.
| VARIANT | COUNTRY |
|---|---|
| Khamvongsa | France, United States, Thailand, Laos, Canada |
| channapha khamvongsa executive director of Legacies of War, a D.C.-based non-profit organization, LA (b. 1973) |
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