All over the world, Nellen (Nellen 
, نيلين 
) is a rare largely female, but infrequently boy's forename. The given name Nellen is characteristic of Philippines, where it is a rare female name, the United States, where it is an extremely rare female name, and India, where it is an extremely rare epicene name. More prevalently, Nellen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nellen | Germany, Argentina, United States, Netherlands, Switzerland |
| نيلين | Sudan |