| ISO 639-3 Reference Names | art-289 | Usui |
| ISO 639-3 Print Names | art-290 | Usui |
| ISO 639-3 Inverted Names | art-291 | Usui |
| Ethnologue Primary Language Names | art-323 | Usoi |
| Glottolog Languoid Names | art-326 | Usui |
| Glottocode | art-327 | usui1238 |
| Glottolog Primary Key | art-328 | 28160 |
| Ethnologue Language Names | art-330 | Joloi |
| Ethnologue Language Names | art-330 | Kau Brung |
| Ethnologue Language Names | art-330 | Panji |
| Ethnologue Language Names | art-330 | Unshoi |
| Ethnologue Language Names | art-330 | Unsuiy |
| Ethnologue Language Names | art-330 | Ushoi |
| Ethnologue Language Names | art-330 | Usoi |
| English | eng-000 | Usui |
