| English | eng-000 |
| Northwestern Otomí | |
| ISO 639-3 | art-001 | otq |
| Glottolog Languoid Names | art-326 | Querétaro Otomi |
| Glottocode | art-327 | quer1236 |
| Glottolog Primary Key | art-328 | 39075 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 930 |
| français | fra-000 | otomí nord-occidental |
| español | spa-000 | otomí noroccidental |