Surname Khounthavixay (Khounthavixay 
) , globally, is a rare cognomen. The last name Khounthavixay is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khounthavixay | Laos |
Sooleeyong, and Viengkeo