Globally, 乃诠 (乃诠 
) is a very rare boy's first name. The given name 乃诠 is habitual in Eastern Asia, particularly China, where it is an extremely rare boy's name. Much less frequently, 乃诠 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 乃诠 | China |