| ISO 639-3 Reference Names | art-289 | Esan |
| ISO 639-3 Print Names | art-290 | Esan |
| ISO 639-3 Inverted Names | art-291 | Esan |
| Ethnologue Primary Language Names | art-323 | Esan |
| Glottolog Languoid Names | art-326 | Esan |
| Glottocode | art-327 | esan1238 |
| Glottolog Primary Key | art-328 | 31567 |
| Ethnologue Language Names | art-330 | Anwain |
| Ethnologue Language Names | art-330 | Ebhoato |
| Ethnologue Language Names | art-330 | Ebhoikimi |
| Ethnologue Language Names | art-330 | Egholo |
| Ethnologue Language Names | art-330 | Egoro |
| Ethnologue Language Names | art-330 | Eilu |
| Ethnologue Language Names | art-330 | Ekpoma |
| Ethnologue Language Names | art-330 | Ekpon |
| Ethnologue Language Names | art-330 | Ekunma |
| Ethnologue Language Names | art-330 | Esa |
| Ethnologue Language Names | art-330 | Esan |
| Ethnologue Language Names | art-330 | Ewatto |
| Ethnologue Language Names | art-330 | Ewohimi |
| Ethnologue Language Names | art-330 | Ewu |
| Ethnologue Language Names | art-330 | Igueben |
| Ethnologue Language Names | art-330 | Irrua |
| Ethnologue Language Names | art-330 | Isa |
| Ethnologue Language Names | art-330 | Ishan |
| Ethnologue Language Names | art-330 | Ogwa |
| Ethnologue Language Names | art-330 | Opoji |
| Ethnologue Language Names | art-330 | Owoha |
| Ethnologue Language Names | art-330 | Ubiaja |
| Ethnologue Language Names | art-330 | Ubiaza |
| Ethnologue Language Names | art-330 | Ugboha |
| Ethnologue Language Names | art-330 | Ukpozi |
| Ethnologue Language Names | art-330 | Uromi |
| Ethnologue Language Names | art-330 | Uronmun |
| Ethnologue Language Names | art-330 | Uruwa |
| English | eng-000 | Esan |
