| ISO 639-3 Reference Names | art-289 | Siwu |
| ISO 639-3 Print Names | art-290 | Siwu |
| ISO 639-3 Inverted Names | art-291 | Siwu |
| Ethnologue Primary Language Names | art-323 | Siwu |
| Glottolog Languoid Names | art-326 | Siwu |
| Glottocode | art-327 | siwu1238 |
| Glottolog Primary Key | art-328 | 29253 |
| Ethnologue Language Names | art-330 | Akpafu |
| Ethnologue Language Names | art-330 | Akpafu-Lolobi |
| Ethnologue Language Names | art-330 | Lolobi |
| Ethnologue Language Names | art-330 | Lolobi-Akpafu |
| Ethnologue Language Names | art-330 | Siwu |
| Ethnologue Language Names | art-330 | Siwusi |
| English | eng-000 | Siwu |
| русский | rus-000 | сиву |
