Cognomen Nopwiriyasi (Nopwiriyasi 
) , globally, is a rare last name. The surname Nopwiriyasi is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nopwiriyasi | Thailand |
Nopnarit, Pongsanan, and Ruchiwarang