Family name Souliyong (Souliyong 
) , in all the world, is a rare cognomen. The surname Souliyong is characteristic of South-eastern Asia, particularly Laos, where it is quite a rare surname. More prevalently, Souliyong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Souliyong | Laos, United States |