Last name Sungson (Sungson 
) , in the entire world, is quite a rare family name. The cognomen Sungson is characteristic of Laos, where it is quite a common surname, Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sungson | Laos, Thailand, United States |