Surname Ratchataswan (Ratchataswan 
) , worldwide, is an extremely rare family name. The last name Ratchataswan is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ratchataswan | Thailand |
| thanaporn ratchataswan researcher (ORCID 0000-0002-9085-7272) |
|