Cognomen ดอง (Dong 
, ดอง 
) , all around the world, is a prevalent surname. The last name ดอง is characteristic of British Virgin Islands, where it is a common surname, Cayman Islands, and China (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in China, the United States, and Vietnam. Much less frequently, ดอง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dong | Vietnam, Nepal, United States, Malaysia, China |
| ดอง | Thailand |