Cognomen Aonsa (อรสา 
, Aonsa ) , around the world, is a very rare last name. The last name Aonsa is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Predominantly, Aonsa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| อรสา, Aonsa | Thailand |