| ISO 639-3 | art-001 |
| kwd | |
| ISO 639-3 Reference Names | art-289 | Kwaio |
| ISO 639-3 Print Names | art-290 | Kwaio |
| ISO 639-3 Inverted Names | art-291 | Kwaio |
| Ethnologue Primary Language Names | art-323 | Kwaio |
| Glottolog Languoid Names | art-326 | Kwaio |
| Glottocode | art-327 | kwai1243 |
| Glottolog Primary Key | art-328 | 41643 |
| Ethnologue Language Names | art-330 | Koio |
| Ethnologue Language Names | art-330 | Kwaio |
| English | eng-000 | Kwaio |