Surname Wiwattanasit (Wiwattanasit 
) , in all the world, is an extremely rare family name. The family name Wiwattanasit is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wiwattanasit | Thailand |
Ussanee, and Ratchatham