Cognomen Aintharasuwan (Aintharasuwan 
) , in the entire world, is a very rare family name. The cognomen Aintharasuwan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Aintharasuwan | Thailand |
Pensiri, Sumontha, Raweepas, Manatsanan, and Oatthaphon