Cognomen Kaosangtong (Kaosangtong 
) , in the world, is a very rare family name. The last name Kaosangtong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaosangtong | Thailand |
Yod, Hongsiam, and Chutchawan