Family name ดวงจา (ดวงจา 
) , in the world, is an extremely rare last name. The family name ดวงจา is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, ดวงจา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ดวงจา | Thailand |