| ISO 639-3 Reference Names | art-289 | Olkol |
| ISO 639-3 Print Names | art-290 | Olkol |
| ISO 639-3 Inverted Names | art-291 | Olkol |
| Ethnologue Primary Language Names | art-323 | Olkol |
| Ethnologue Language Names | art-330 | Koka-ollugul |
| Ethnologue Language Names | art-330 | Koko Olkol |
| Ethnologue Language Names | art-330 | Koko Olkolo |
| Ethnologue Language Names | art-330 | Koko-olkol |
| Ethnologue Language Names | art-330 | Olcoola |
| Ethnologue Language Names | art-330 | Olgolo |
| Ethnologue Language Names | art-330 | Olkol |
| Ethnologue Language Names | art-330 | Olkulo |
| Ethnologue Language Names | art-330 | Ol’kol |
| Ethnologue Language Names | art-330 | Ulkulu |
| Ethnologue Language Names | art-330 | Wulgulu |
| English | eng-000 | Olkol |
