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