Surname รังสิอัฑฒ์กร (รังสิอัฑฒ์กร 
) , in all the world, is an extremely rare cognomen. The last name รังสิอัฑฒ์กร is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| รังสิอัฑฒ์กร | Thailand |