Surname Fongsamouth (Fongsamouth 
) , in all the world, is a rare family name. The family name Fongsamouth is characteristic of Laos, where it is quite a common surname, Canada, where it is a very rare surname, and Thailand. Measured by absolute frequency, this name is the most popular in Laos, the United States, and Canada. Also, Fongsamouth is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fongsamouth | United States, Thailand, Canada, Laos |