Surname 曰瑾 (曰瑾 
) , globally, is a very rare last name. The family name 曰瑾 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 曰瑾 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 曰瑾 | China |