| UNESCO Atlas of the World’s Languages in Danger ID | art-329 |
| 415 | |
| ISO 639-3 | art-001 | eus |
| Glottolog Languoid Names | art-326 | Basque |
| Glottocode | art-327 | basq1248 |
| Glottolog Primary Key | art-328 | 23897 |
| English | eng-000 | Basque |
| français | fra-000 | basque |
| español | spa-000 | euskera |