| français | fra-000 |
| heiltsuk | |
| ISO 639-3 | art-001 | hei |
| Glottolog Languoid Names | art-326 | Heiltsuk |
| Glottocode | art-327 | heil1246 |
| Glottolog Primary Key | art-328 | 38926 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 257 |
| English | eng-000 | Heiltsuk |
| español | spa-000 | heilchuco |