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