| English | eng-000 |
| Defaka | |
| ISO 639-3 | art-001 | afn |
| ISO 639-3 Inverted Names | art-291 | Defaka |
| Glottolog Languoid Names | art-326 | Defaka |
| Glottocode | art-327 | defa1248 |
| Glottolog Primary Key | art-328 | 44673 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 29 |
| brezhoneg | bre-000 | Defakeg |
| français | fra-000 | defaka |
| русский | rus-000 | дефака |
| español | spa-000 | defaka |