| ISO 639-1 | art-004 |
| eu | |
| ISO 639-3 | art-001 | eus |
| ISO 639-2/T | art-002 | eus |
| ISO 639-2/B | art-003 | baq |
| ISO 639-3 Reference Names | art-289 | Basque |
| ISO 639-3 Print Names | art-290 | Basque |
| ISO 639-3 Inverted Names | art-291 | Basque |
| 普通话 | cmn-000 | 巴斯克语 |
| Deutsch | deu-000 | Baskisch |
| English | eng-000 | Basque |
| euskara | eus-000 | euskara |
| français | fra-000 | basque |
| русский | rus-000 | баскский |
| español | spa-000 | euskera |
| español | spa-000 | vasco |