Cognomen วงศ์ทรัพย์ (วงศ์ทรัพย์ 
, Vongsap , Vongsup ) , in all the world, is a rare last name. The last name วงศ์ทรัพย์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vongsup, วงศ์ทรัพย์, Vongsap, Wongsap | Thailand |
Wongsab, Wongsaparn, Wongsapate, Wongsapath, Wongsapin, Wongsapun, Wongsasap, Wongsatep, Wongsub, Wongsubn, Wongsup, Wongsupab, and Wongsupap