Cognomen กาจ-วันเพ็ญ (กาจ-วันเพ็ญ 
) , all around the world, is an extremely rare family name. Predominantly, กาจ-วันเพ็ญ is the forename as well as the last name. Parts of the name also exists independently as a first name กาจ, and a first name วันเพ็ญ.
| VARIANT | COUNTRY |
|---|---|
| กาจ-วันเพ็ญ | Thailand |