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