Surname Vilaythong (Vilaythong 
) , around the globe, is quite a rare cognomen. The family name Vilaythong is habitual in Laos, where it is quite a common surname, Australia, where it is a very rare surname, and the United States. Measured by absolute frequency, it most frequently occurs in Laos, the United States, and France. Also, Vilaythong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vilaythong | Laos, Australia, United States, Canada, France |