Cognomen พลนันท์หิรัญ (พลนันท์หิรัญ 
) , across the world, is an extremely rare last name. The cognomen พลนันท์หิรัญ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พลนันท์หิรัญ | Thailand |