Cognomen ຄາພນ (ຄາພນ 
) , across the world, is a rare last name. The surname ຄາພນ is habitual in South-eastern Asia, particularly Laos, where it is quite a common surname. Also, ຄາພນ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ຄາພນ | Laos |