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