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