| ISO 639-3 | art-001 |
| mai | |
| ISO 639-2/T | art-002 | mai |
| ISO 639-2/B | art-003 | mai |
| ISO 639-3 Reference Names | art-289 | Maithili |
| ISO 639-3 Print Names | art-290 | Maithili |
| ISO 639-3 Inverted Names | art-291 | Maithili |
| Ethnologue Primary Language Names | art-323 | Maithili |
| Glottolog Languoid Names | art-326 | Maithili |
| Glottocode | art-327 | mait1250 |
| Glottolog Primary Key | art-328 | 37805 |
| Ethnologue Language Names | art-330 | Apabhramsa |
| Ethnologue Language Names | art-330 | Bajjika |
| Ethnologue Language Names | art-330 | Bantar |
| Ethnologue Language Names | art-330 | Barei |
| Ethnologue Language Names | art-330 | Barmeli |
| Ethnologue Language Names | art-330 | Bihari |
| Ethnologue Language Names | art-330 | Central Colloquial Maithili |
| Ethnologue Language Names | art-330 | Dehati |
| Ethnologue Language Names | art-330 | Eastern Maithili |
| Ethnologue Language Names | art-330 | Jolaha |
| Ethnologue Language Names | art-330 | Kawar |
| Ethnologue Language Names | art-330 | Khotta |
| Ethnologue Language Names | art-330 | Kisan |
| Ethnologue Language Names | art-330 | Kortha |
| Ethnologue Language Names | art-330 | Kortha Bihari |
| Ethnologue Language Names | art-330 | Kyabrat |
| Ethnologue Language Names | art-330 | Maithili |
| Ethnologue Language Names | art-330 | Maitili |
| Ethnologue Language Names | art-330 | Maitli |
| Ethnologue Language Names | art-330 | Makrana |
| Ethnologue Language Names | art-330 | Methli |
| Ethnologue Language Names | art-330 | Musar |
| Ethnologue Language Names | art-330 | Sotipura |
| Ethnologue Language Names | art-330 | Southern Standard Maithili |
| Ethnologue Language Names | art-330 | Standard Maithili |
| Ethnologue Language Names | art-330 | Tati |
| Ethnologue Language Names | art-330 | Thenthi |
| Ethnologue Language Names | art-330 | Thetiya |
| Ethnologue Language Names | art-330 | Tirahutia |
| Ethnologue Language Names | art-330 | Tirhuti |
| Ethnologue Language Names | art-330 | Tirhutia |
| Ethnologue Language Names | art-330 | Western Maithili |
| 普通话 | cmn-000 | 米德勒语 |
| 普通话 | cmn-000 | 迈蒂利语 |
| Deutsch | deu-000 | Maithili |
| English | eng-000 | Maithili |
| français | fra-000 | maithili |
| मैथिली | mai-001 | मैथिली |
| русский | rus-000 | майтхили |
| español | spa-000 | maithili |
