| ISO 639-3 | art-001 |
| gad | |
| ISO 639-3 Reference Names | art-289 | Gaddang |
| ISO 639-3 Print Names | art-290 | Gaddang |
| ISO 639-3 Inverted Names | art-291 | Gaddang |
| Ethnologue Primary Language Names | art-323 | Gaddang |
| Glottolog Languoid Names | art-326 | Gaddang |
| Glottocode | art-327 | gadd1244 |
| Glottolog Primary Key | art-328 | 39624 |
| Ethnologue Language Names | art-330 | Cagayan |
| Ethnologue Language Names | art-330 | Gaddang |
| English | eng-000 | Gaddang |