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