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