Cognomen Phaithong (Phaithong 
) , all over the world, is a very rare surname. The surname Phaithong is habitual in Thailand, where it is a very rare surname, Argentina, where it is an extremely rare surname, and India. More prevalently, Phaithong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phaithong | Laos, India, Thailand, United States, Argentina |