Cognomen Panyavichith (Panyavichith 
) , around the globe, is quite a rare last name. The cognomen Panyavichith is habitual in South-eastern Asia, particularly Laos, where it is quite a common surname, and Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Panyavichith | Laos, Thailand |