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