Family name Phanichnitinon (Phanichnitinon 
) , in the world, is a very rare surname. The cognomen Phanichnitinon is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phanichnitinon | Thailand |
Woranart, Wimonluck, and Rattanapol