Cognomen Amornsetthachai (Amornsetthachai 
) , across the world, is a very rare family name. The family name Amornsetthachai is characteristic of Japan, where it is a very rare surname, and Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Amornsetthachai | Japan, Thailand |
Pirapat, and Pratchavee