Last name ดวงทัย (ดวงทัย 
) , in the world, is a very rare family name. The surname ดวงทัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, ดวงทัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ดวงทัย | Thailand |