| English | eng-000 |
| Guatuso | |
| ISO 639-3 | art-001 | gut |
| Glottolog Languoid Names | art-326 | Maléku Jaíka |
| Glottocode | art-327 | male1297 |
| Glottolog Primary Key | art-328 | 24687 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 1884 |
| français | fra-000 | guatuso |
| español | spa-000 | guatuso |