Family name Vattanasimagon (Vattanasimagon 
) , globally, is a rare surname. The surname Vattanasimagon is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vattanasimagon | Thailand |
Ketsara, Ketwadee, Chidchol, and Chaldarong