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