| ISO 639-3 | art-001 |
| chv | |
| ISO 639-2/T | art-002 | chv |
| ISO 639-2/B | art-003 | chv |
| ISO 639-1 | art-004 | cv |
| ISO 639-3 Reference Names | art-289 | Chuvash |
| ISO 639-3 Print Names | art-290 | Chuvash |
| ISO 639-3 Inverted Names | art-291 | Chuvash |
| Ethnologue Primary Language Names | art-323 | Chuvash |
| Glottolog Languoid Names | art-326 | Chuvash |
| Glottocode | art-327 | chuv1255 |
| Glottolog Primary Key | art-328 | 23911 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 338 |
| Ethnologue Language Names | art-330 | Anatri |
| Ethnologue Language Names | art-330 | Bulgar |
| Ethnologue Language Names | art-330 | Chuvash |
| Ethnologue Language Names | art-330 | Viryal |
| чӑваш | chv-000 | Чӑваш |
| 普通话 | cmn-000 | 楚瓦什语 |
| Deutsch | deu-000 | Tschuwaschisch |
| English | eng-000 | Chuvash |
| français | fra-000 | tchouvache |
| русский | rus-000 | чувашский |
| español | spa-000 | chuvacho |
| español | spa-000 | chuvasio |