| Glottocode | art-327 |
| raro1241 | |
| ISO 639-3 | art-001 | rar |
| Glottolog Languoid Names | art-326 | Rarotongan |
| Glottolog Primary Key | art-328 | 41298 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 704 |
| English | eng-000 | Rarotongan |
| français | fra-000 | rarotongien |
| español | spa-000 | rarotongano |