| English | eng-000 |
| Guajajara | |
| ISO 639-3 | art-001 | gub |
| Glottolog Languoid Names | art-326 | Guajajára |
| Glottocode | art-327 | guaj1255 |
| Glottolog Primary Key | art-328 | 24444 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 1666 |
| français | fra-000 | guajajára |
| italiano | ita-000 | Guajajara |
| português | por-000 | Guajajaras |
| español | spa-000 | guajajara |