| ISO 639-3 | art-001 |
| pij | |
| ISO 639-3 Reference Names | art-289 | Pijao |
| ISO 639-3 Print Names | art-290 | Pijao |
| ISO 639-3 Inverted Names | art-291 | Pijao |
| Ethnologue Primary Language Names | art-323 | Pijao |
| Glottolog Languoid Names | art-326 | Pijao |
| Glottocode | art-327 | pija1235 |
| Glottolog Primary Key | art-328 | 36108 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 645 |
| Ethnologue Language Names | art-330 | Piajao |
| Ethnologue Language Names | art-330 | Pijao |
| English | eng-000 | Pijao |
| français | fra-000 | pijao |
| español | spa-000 | pijao |