Cognomen ตรัยวัฒนพงษ์ (ตรัยวัฒนพงษ์ 
) , in all the world, is a very rare family name. The family name ตรัยวัฒนพงษ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ตรัยวัฒนพงษ์ | Thailand |