Cognomen Setthavanxay (Setthavanxay 
) , in the entire world, is a rare family name. The family name Setthavanxay is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Setthavanxay | Laos |
On Anong, and Thanongdeth