Cognomen Watthanaapisith (Watthanaapisith 
) , globally, is a very rare family name. The surname Watthanaapisith is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Watthanaapisith | Thailand |
Roongroj, Thanajporn, and Kamolporn