Cognomen Nokduan (Nokduan 
) , throughout the world, is a very rare family name. The last name Nokduan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nokduan | Thailand |
Sirinya, Pharanyu, Nattawat, and Khachonkiad