Last name 贤曰 (贤曰 
) , all around the world, is a very rare family name. The family name 贤曰 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 贤曰 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 贤曰 | China |