| English | eng-000 |
| Kadu | |
| ISO 639-3 | art-001 | zkd |
| ISO 639-3 Inverted Names | art-291 | Kadu |
| Glottolog Languoid Names | art-326 | Kado |
| Glottocode | art-327 | kado1242 |
| Glottolog Primary Key | art-328 | 28183 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 528 |
| français | fra-000 | kadu |
| русский | rus-000 | каду |
| español | spa-000 | gadu |