Family name Sanguankumthorn (Sanguankumthorn 
) , in all the world, is a very rare surname. The surname Sanguankumthorn is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sanguankumthorn | Thailand |
Kitkumthorn, Waranya, and Suppawit