| ISO 639-3 | art-001 |
| iws | |
| ISO 639-3 Reference Names | art-289 | Sepik Iwam |
| ISO 639-3 Print Names | art-290 | Sepik Iwam |
| ISO 639-3 Inverted Names | art-291 | Iwam, Sepik |
| Ethnologue Primary Language Names | art-323 | Iwam, Sepik |
| Glottolog Languoid Names | art-326 | Sepik Iwam |
| Glottocode | art-327 | sepi1255 |
| Glottolog Primary Key | art-328 | 26663 |
| Ethnologue Language Names | art-330 | Iwam, Sepik |
| Ethnologue Language Names | art-330 | Yawenian |
| English | eng-000 | Sepik Iwam |