Family name Arthanwanit (Arthanwanit 
) , in the entire world, is a very rare surname. The cognomen Arthanwanit is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Arthanwanit | Thailand |
Thanom, Umaporn, Suparada, Asamaphon, and Natthawipha