Cognomen ธนทรัพย์กุลชา (ธนทรัพย์กุลชา 
) , across the world, is an extremely rare family name. The surname ธนทรัพย์กุลชา is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธนทรัพย์กุลชา | Thailand |