Family name Souvannaseng (Souvannaseng 
) , in all the world, is a rare last name. The surname Souvannaseng is habitual in Laos, where it is quite a rare surname, the United States, where it is a very rare surname, and Thailand.
| VARIANT | COUNTRY |
|---|---|
| Souvannaseng | Laos, United States, Thailand, Canada |
Kim, Ketsana, Dalounny, Anousith, Kathrina, Victoria, Viengsay, Sourath, Somphouvone, Chanpheng, Bouthieng, Bounliane, Phouthone, Soudachanh, Paphatsone, Amphayvanh, Phouangchay, Nicole, Lattha, Joy, Eva, Sati, Anna, Nena, Maree, Johnny, Steve, Ricky, Linda, Jammy, Emily, Amanda, Lathda, Chine, and Douangbouppha