Surname Thanasathit (Thanasathit 
) , in all the world, is an extremely rare family name. The family name Thanasathit is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Thanasathit is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thanasathit | Thailand |
Eupa, and Yutthakiat