| English | eng-000 |
| Guarayu | |
| ISO 639-3 | art-001 | gyr |
| ISO 639-3 Inverted Names | art-291 | Guarayu |
| Glottolog Languoid Names | art-326 | Guarayu |
| Glottocode | art-327 | guar1292 |
| Glottolog Primary Key | art-328 | 24389 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 1922 |
| français | fra-000 | guarayu |
| español | spa-000 | guarayo |
| español | spa-000 | guarayú |