Surname อส (Asa 
, Aussadayut 
, Aussawapoomin ) , across the world, is a common cognomen. The cognomen อส is habitual in Kuwait, where it is quite a common surname, Israel, and Laos, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in India, Indonesia, and Nigeria. More prevalently, อส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Asa | United States, India, Indonesia, Nigeria, Japan |
| Aussawapoomin, Aussadayut | Thailand |
Aussawapattaraputi, and S