| English | eng-000 |
| Rapa | |
| ISO 639-3 | art-001 | ray |
| ISO 639-3 Inverted Names | art-291 | Rapa |
| Glottolog Languoid Names | art-326 | Rapa |
| Glottocode | art-327 | rapa1245 |
| Glottolog Primary Key | art-328 | 41265 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 705 |
| français | fra-000 | rapa |
| español | spa-000 | rapano |