Last name ພອນຈນ (ພອນຈນ 
) , in all the world, is a rare family name. The cognomen ພອນຈນ is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname. More frequently, ພອນຈນ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ພອນຈນ | Laos |