Cognomen ศิลปสุวรรณชัย (ศิลปสุวรรณชัย 
, Sinlapasuwanchai , Silapasuwanchai 
) , in the world, is a very rare family name. The last name ศิลปสุวรรณชัย is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ศิลปสุวรรณชัย, Sinlapasuwanchai | Thailand |
| Silapasuwanchai | United States, Thailand |