Across the world, 凡弟 (凡弟 
) is a very rare boy's given name. The forename 凡弟 is characteristic of Eastern Asia, particularly China, where it is an extremely rare male name. Very seldom, 凡弟 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 凡弟 | China |