Throughout the world, Đại Dương (Đại Dương 
) is a very rare boy's first name. The forename Đại Dương is habitual in South-eastern Asia, particularly Vietnam, where it is a very rare masculine name. Also, Đại Dương is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Đại Dương | Japan, Vietnam |