Family name อาช (At 
, Arsh 
, อาช 
) , all around the world, is a common surname. The last name อาช is habitual in Libya, where it is quite a common surname, Lebanon, and Syria. Not in comparison with a country's population, it is the most numerous in Pakistan, Indonesia, and Myanmar. Also, อาช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| At | Myanmar, Morocco, Pakistan, India, Indonesia |
| Arsh | Myanmar, Pakistan, India, Indonesia, Saudi Arabia |
| อาช | Thailand |