| ISO 639-3 | art-001 |
| njj | |
| ISO 639-3 Reference Names | art-289 | Njen |
| ISO 639-3 Print Names | art-290 | Njen |
| ISO 639-3 Inverted Names | art-291 | Njen |
| Ethnologue Primary Language Names | art-323 | Njen |
| Glottolog Languoid Names | art-326 | Njen |
| Glottocode | art-327 | njen1238 |
| Glottolog Primary Key | art-328 | 31330 |
| Ethnologue Language Names | art-330 | Nen |
| Ethnologue Language Names | art-330 | Njen |
| Ethnologue Language Names | art-330 | Nyen |
| Ethnologue Language Names | art-330 | Nzin |
| English | eng-000 | Njen |