Family name Doungdok (Doungdok 
) , all around the world, is a very rare last name. The last name Doungdok is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Doungdok | Thailand |
Somchai, Nongnapat, Siripornkan, and Pacharakorn