| UNESCO Atlas of the World’s Languages in Danger ID | art-329 |
| 154 | |
| ISO 639-3 | art-001 | koy |
| Glottolog Languoid Names | art-326 | Koyukon |
| Glottocode | art-327 | koyu1237 |
| Glottolog Primary Key | art-328 | 44858 |
| English | eng-000 | Koyukon |
| français | fra-000 | koyukon |
| español | spa-000 | koyuko |