Surname Soontavanik (Soontavanik 
) , all around the world, is a very rare last name. The family name Soontavanik is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Soontavanik | Thailand |
Bussarin, Pongpanot, Pongpalin, and Sirapassorn