| ISO 639-3 | art-001 |
| rkh | |
| ISO 639-3 Reference Names | art-289 | Rakahanga-Manihiki |
| ISO 639-3 Print Names | art-290 | Rakahanga-Manihiki |
| ISO 639-3 Inverted Names | art-291 | Rakahanga-Manihiki |
| Ethnologue Primary Language Names | art-323 | Rakahanga-Manihiki |
| Glottolog Languoid Names | art-326 | Rakahanga-Manihiki |
| Glottocode | art-327 | raka1237 |
| Glottolog Primary Key | art-328 | 41289 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 709 |
| Ethnologue Language Names | art-330 | Manihiki-Rakahanga |
| Ethnologue Language Names | art-330 | Rakahanga-Manihiki |
| English | eng-000 | Manihiki |
| English | eng-000 | Rakahanga-Manihiki |
| français | fra-000 | manihiki |
| español | spa-000 | manihiki-rakahanga |