| ISO 639-3 | art-001 |
| cjh | |
| ISO 639-3 Reference Names | art-289 | Upper Chehalis |
| ISO 639-3 Print Names | art-290 | Upper Chehalis |
| ISO 639-3 Inverted Names | art-291 | Chehalis, Upper |
| Ethnologue Primary Language Names | art-323 | Chehalis, Upper |
| Glottolog Languoid Names | art-326 | Upper Chehalis |
| Glottocode | art-327 | uppe1439 |
| Glottolog Primary Key | art-328 | 24576 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 797 |
| Ethnologue Language Names | art-330 | Chehalis |
| Ethnologue Language Names | art-330 | Chehalis, Upper |
| Ethnologue Language Names | art-330 | Kwaiailk |
| English | eng-000 | Upper Chehalis |
| français | fra-000 | haut-chehalis |
| español | spa-000 | chehalí alto |