Family name Punyaviwat (Punyaviwat 
) , in the entire world, is a very rare surname. The cognomen Punyaviwat is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Punyaviwat | Thailand |
Gunyanun, Chaninart, and Rattanaporn