Cognomen นฤนาทวานิช (นฤนาทวานิช 
, Narunatvanich 
) , around the world, is a very rare last name. The family name นฤนาทวานิช is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| นฤนาทวานิช | Thailand |
| Narunatvanich | United States |