Surname Ngamtanakhun (Ngamtanakhun 
) , globally, is a very rare last name. The cognomen Ngamtanakhun is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ngamtanakhun | Thailand |
Napat, Surachai, Cholapath, and Ratchadawan