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