| ISO 639-3 Reference Names | art-289 | Petjo |
| ISO 639-3 Print Names | art-290 | Petjo |
| ISO 639-3 Inverted Names | art-291 | Petjo |
| Ethnologue Primary Language Names | art-323 | Petjo |
| Glottolog Languoid Names | art-326 | Petjo |
| Glottocode | art-327 | petj1238 |
| Glottolog Primary Key | art-328 | 37095 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 2589 |
| Ethnologue Language Names | art-330 | Pecok |
| Ethnologue Language Names | art-330 | Peco’ |
| Ethnologue Language Names | art-330 | Petjo |
| Ethnologue Language Names | art-330 | Petjoh |
| English | eng-000 | Peco’ Creole |
| English | eng-000 | Petjo |
| français | fra-000 | créole pecok |
| español | spa-000 | criollo petjo |
