Cognomen Phitchanuwat (Phitchanuwat 
) , across the world, is a very rare family name. The last name Phitchanuwat is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phitchanuwat | Thailand |
Phichai, Phitchai, Punyapha, Prapphaiphit, and Praphaiphit