Worldwide, 宇鼎 (宇鼎 
) is a very rare boy's first name. The forename 宇鼎 is characteristic of Eastern Asia, particularly China, where it is an extremely rare male name. Much less frequently, 宇鼎 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 宇鼎 | China |