Cognomen Phathanun (Phathanun 
) , in the entire world, is an extremely rare last name. The surname Phathanun is habitual in South-eastern Asia, particularly Malaysia, where it is an extremely rare surname. More prevalently, Phathanun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phathanun | Malaysia, Thailand |