Cognomen วุฒิศิลาชัย (วุฒิศิลาชัย 
) , across the world, is an extremely rare family name. The last name วุฒิศิลาชัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| วุฒิศิลาชัย | Thailand |