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