Around the world, Pongjayavanij (Pongjayavanij 
) is a very rare girly first name. The forename Pongjayavanij is characteristic of Eastern Asia, particularly China, where it is an extremely rare female name. More prevalently, Pongjayavanij is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Pongjayavanij | China, Thailand |