Family name Thaweethanatsit (Thaweethanatsit 
) , around the globe, is a very rare last name. The surname Thaweethanatsit is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thaweethanatsit | Thailand |
Pasinee, Pimpattra, and Ditsayanin