| ISO 639-3 Reference Names | art-289 | Siwi |
| ISO 639-3 Print Names | art-290 | Siwi |
| ISO 639-3 Inverted Names | art-291 | Siwi |
| Ethnologue Primary Language Names | art-323 | Siwi |
| Glottolog Languoid Names | art-326 | Siwi |
| Glottocode | art-327 | siwi1239 |
| Glottolog Primary Key | art-328 | 25842 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 6 |
| Ethnologue Language Names | art-330 | Oasis Berber |
| Ethnologue Language Names | art-330 | Sioua |
| Ethnologue Language Names | art-330 | Siwa |
| Ethnologue Language Names | art-330 | Siwi |
| Ethnologue Language Names | art-330 | Zenati |
| English | eng-000 | Siwi |
| français | fra-000 | siwi |
| español | spa-000 | siví |
