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