| ISO 639-3 | art-001 |
| gyr | |
| ISO 639-3 Reference Names | art-289 | Guarayu |
| ISO 639-3 Print Names | art-290 | Guarayu |
| ISO 639-3 Inverted Names | art-291 | Guarayu |
| Ethnologue Primary Language Names | art-323 | 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 |
| Ethnologue Language Names | art-330 | Guarayo |
| Ethnologue Language Names | art-330 | Guarayu |
| English | eng-000 | Guarayu |
| français | fra-000 | guarayu |
| español | spa-000 | guarayo |
| español | spa-000 | guarayú |