Family name ขวัญวงค์ (ขวัญวงค์ 
) , all over the world, is a very rare last name. The cognomen ขวัญวงค์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ขวัญวงค์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ขวัญวงค์ | Thailand |