Cognomen 栗宇 (栗宇 
) , all over the world, is a very rare surname. The last name 栗宇 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 栗宇 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 栗宇 | China |