| ISO 639-3 | art-001 |
| opa | |
| ISO 639-3 Reference Names | art-289 | Okpamheri |
| ISO 639-3 Print Names | art-290 | Okpamheri |
| ISO 639-3 Inverted Names | art-291 | Okpamheri |
| Ethnologue Primary Language Names | art-323 | Okpamheri |
| Glottolog Languoid Names | art-326 | Okpamheri |
| Glottocode | art-327 | okpa1238 |
| Glottolog Primary Key | art-328 | 31518 |
| Ethnologue Language Names | art-330 | Emarle |
| Ethnologue Language Names | art-330 | Emhalhe |
| Ethnologue Language Names | art-330 | Ibilo |
| Ethnologue Language Names | art-330 | Okpamheri |
| Ethnologue Language Names | art-330 | Okulosho |
| Ethnologue Language Names | art-330 | Okurosho |
| Ethnologue Language Names | art-330 | Opameri |
| Ethnologue Language Names | art-330 | Semolika |
| Ethnologue Language Names | art-330 | Somorika |
| Ethnologue Language Names | art-330 | Western Okpamheri |
| English | eng-000 | Okpamheri |