Cognomen Vichaitanaphat (Vichaitanaphat 
) , in the world, is a rare last name. The last name Vichaitanaphat is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vichaitanaphat | Thailand |
Namfon, Nichaiphat, Wanvilai, and Nichaphat