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