| ISO 639-3 Reference Names | art-289 | Ludian |
| ISO 639-3 Print Names | art-290 | Ludian |
| ISO 639-3 Inverted Names | art-291 | Ludian |
| Ethnologue Primary Language Names | art-323 | Ludian |
| Glottolog Languoid Names | art-326 | Ludian |
| Glottocode | art-327 | ludi1246 |
| Glottolog Primary Key | art-328 | 44462 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 385 |
| Ethnologue Language Names | art-330 | Ludian |
| Ethnologue Language Names | art-330 | Ludic |
| Ethnologue Language Names | art-330 | Lyudic |
| Ethnologue Language Names | art-330 | Lyudikovian |
| Ethnologue Language Names | art-330 | Lüüdi |
| Ethnologue Language Names | art-330 | Lüüdikiel |
| English | eng-000 | Lude |
| English | eng-000 | Ludian |
| français | fra-000 | lude |
| français | fra-000 | ludien |
| lüüdikiel | lud-000 | lüüdi |
| русский | rus-000 | людиковский |
| español | spa-000 | ludio |
