| ISO 639-3 | art-001 |
| siw | |
| ISO 639-3 Reference Names | art-289 | Siwai |
| ISO 639-3 Print Names | art-290 | Siwai |
| ISO 639-3 Inverted Names | art-291 | Siwai |
| Ethnologue Primary Language Names | art-323 | Siwai |
| Glottolog Languoid Names | art-326 | Siwai |
| Glottocode | art-327 | siwa1245 |
| Glottolog Primary Key | art-328 | 34107 |
| Ethnologue Language Names | art-330 | Baitsi |
| Ethnologue Language Names | art-330 | Motuna |
| Ethnologue Language Names | art-330 | Sigisigero |
| Ethnologue Language Names | art-330 | Siwai |
| English | eng-000 | Siwai |