Surname อุ่นทรัพย์ (อุ่นทรัพย์, Aunsap 
) , all over the world, is an extremely rare family name. The cognomen อุ่นทรัพย์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Aunsap | Thailand |