| ISO 639-3 | art-001 |
| nkj | |
| ISO 639-3 Reference Names | art-289 | Nakai |
| ISO 639-3 Print Names | art-290 | Nakai |
| ISO 639-3 Inverted Names | art-291 | Nakai |
| Ethnologue Primary Language Names | art-323 | Nakai |
| Glottolog Languoid Names | art-326 | Nakai |
| Glottocode | art-327 | naka1265 |
| Glottolog Primary Key | art-328 | 43243 |
| Ethnologue Language Names | art-330 | Nagai |
| Ethnologue Language Names | art-330 | Nakai |
| Ethnologue Language Names | art-330 | Na’ai |
| Ethnologue Language Names | art-330 | Na’i |
| English | eng-000 | Nakai |