| English | eng-000 |
| Aja | |
| Ajja | aja-000 | Ajja |
| ISO 639-3 | art-001 | aja |
| ISO 639-3 | art-001 | ajg |
| ISO 639 | art-005 | aja |
| ISO 639-PanLex | art-274 | aja-000 |
| ISO 639-3 Inverted Names | art-291 | Aja (Benin) |
| ISO 639-3 Inverted Names | art-291 | Aja (Sudan) |
| Glottolog Languoid Names | art-326 | Aja (Sudan) |
| Glottocode | art-327 | ajas1235 |
| Glottolog Primary Key | art-328 | 36278 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 1688 |
| català | cat-000 | Aja |
| Deutsch | deu-000 | Aja |
| English | eng-000 | Adja |
| English | eng-000 | Ajja |
| français | fra-000 | Aja |
| français | fra-000 | aja |
| galego | glg-000 | Aja |
| 日本語 | jpn-000 | 彩(エイジャ) |
| русский | rus-000 | аджа |
| español | spa-000 | Aja |
| español | spa-000 | aja |