Cognomen Jarngprasert (Jarngprasert 
) , all over the world, is an extremely rare surname. The last name Jarngprasert is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jarngprasert | Thailand |
Klakawee, Rathtanaree, and Charnchai