Family name นวรัตน์ ณ อยุธยา (นวรัตน์ ณ อยุธยา, Nawarat Na Ayudhaya 
) , in all the world, is a very rare cognomen. The surname นวรัตน์ ณ อยุธยา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nawarat Na Ayudhaya | Thailand |