Cognomen กุลทรัพย์เจริญ (กุลทรัพย์เจริญ 
) , throughout the world, is an extremely rare family name. The cognomen กุลทรัพย์เจริญ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กุลทรัพย์เจริญ | Thailand |