Cognomen Kengthong (Kengthong 
) , in the entire world, is a very rare family name. The cognomen Kengthong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Kengthong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kengthong | India, Thailand |