Cognomen Opassatitkul (Opassatitkul 
) , around the world, is a very rare last name. The family name Opassatitkul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Opassatitkul | Thailand |
Niphat, Chatchanun, and Nichareephat