Cognomen 曜宇 (曜宇 
) , all over the world, is a rare last name. The family name 曜宇 is habitual in Eastern Asia, particularly China, where it is a very rare surname. More frequently, 曜宇 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 曜宇 | China |