Last name ทรัพย์วาณิช (ทรัพย์วาณิช 
, Supanvanij 
) , across the world, is a very rare cognomen. The surname ทรัพย์วาณิช is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ทรัพย์วาณิช | Thailand |
| Supanvanij | United States, Thailand |