Cognomen 靖宇 (靖宇 
) , around the world, is quite a common family name. The cognomen 靖宇 is habitual in Eastern Asia, particularly China, where it is a rare surname. More prevalently, 靖宇 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 靖宇 | China |