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