| ISO 639-3 Reference Names | art-289 | Jejueo |
| ISO 639-3 Print Names | art-290 | Jejueo |
| ISO 639-3 Inverted Names | art-291 | Jejueo |
| Ethnologue Primary Language Names | art-323 | Jejueo |
| Glottolog Languoid Names | art-326 | Jejueo |
| Glottocode | art-327 | jeju1234 |
| Glottolog Primary Key | art-328 | 107330 |
| Ethnologue Language Names | art-330 | Cheju |
| Ethnologue Language Names | art-330 | Chejumal |
| Ethnologue Language Names | art-330 | Cheycwu |
| Ethnologue Language Names | art-330 | Cheycwumal |
| Ethnologue Language Names | art-330 | Jeju |
| Ethnologue Language Names | art-330 | Jejueo |
| Ethnologue Language Names | art-330 | Jejumal |
