Cognomen Phannaroj (Phannaroj 
) , all over the world, is an extremely rare last name. The cognomen Phannaroj is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Likewise, Phannaroj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phannaroj | Thailand |