Last name Dongseong (동성 
, Dongseong 
) , all over the world, is a very rare family name. The cognomen Dongseong is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. Predominantly, Dongseong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 동성 | South Korea |
| Dongseong | South Korea, China, United States, Canada |