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