Cognomen Kedthong (Kedthong 
) , in the world, is a very rare last name. The cognomen Kedthong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kedthong | Thailand |
Anusak, Rujirek, Napasak, Thaninpoom, and Phichayapa