Around the globe, 悦岩 (悦岩 
) is a very rare unisex first name. The forename 悦岩 is characteristic of Eastern Asia, particularly China, where it is an extremely rare epicene name. Much less frequently, 悦岩 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 悦岩 | China |