Surname Thawanhatai (Thawanhatai 
) , in the world, is an extremely rare family name. Predominantly, Thawanhatai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thawanhatai | Thailand |
Kruayatidee, Sithakom, Sinthunok, Rungkiatrat, and Thitayarak