Surname Reoriab (Reoriab 
) , across the world, is a very rare last name. The family name Reoriab is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Reoriab | Thailand |
Songyod, Boonchai, Thanachot, Natchanon, and Ratchiraphan