| ISO 639-3 Reference Names | art-289 | Oku |
| ISO 639-3 Print Names | art-290 | Oku |
| ISO 639-3 Inverted Names | art-291 | Oku |
| Ethnologue Primary Language Names | art-323 | Oku |
| Glottolog Languoid Names | art-326 | Oku (Cameroon) |
| Glottocode | art-327 | okuu1243 |
| Glottolog Primary Key | art-328 | 31315 |
| Ethnologue Language Names | art-330 | Bvukoo |
| Ethnologue Language Names | art-330 | Ebkuo |
| Ethnologue Language Names | art-330 | Ekpwo |
| Ethnologue Language Names | art-330 | Kuo |
| Ethnologue Language Names | art-330 | Oku |
| Ethnologue Language Names | art-330 | Ukfwo |
| Ethnologue Language Names | art-330 | Uku |
| English | eng-000 | Oku |
