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