Cognomen ดวงสิทธิ์ (ดวงสิทธิ์ 
) , around the world, is a very rare surname. The cognomen ดวงสิทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, ดวงสิทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ดวงสิทธิ์ | Thailand |