Cognomen Injonglan (Injonglan 
) , in the entire world, is a very rare family name. The family name Injonglan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Injonglan | Thailand |
Paweena, Suchanya, Runglada, Daraporn, and Kittiyanan