| ISO 639-3 | art-001 |
| tog | |
| ISO 639-2/T | art-002 | tog |
| ISO 639-2/B | art-003 | tog |
| ISO 639-3 Reference Names | art-289 | Tonga (Nyasa) |
| ISO 639-3 Print Names | art-290 | Tonga (Nyasa) |
| ISO 639-3 Inverted Names | art-291 | Tonga (Nyasa) |
| Ethnologue Primary Language Names | art-323 | Tonga |
| Glottolog Languoid Names | art-326 | Tonga (Nyasa) |
| Glottocode | art-327 | tong1321 |
| Glottolog Primary Key | art-328 | 31030 |
| Ethnologue Language Names | art-330 | Chitonga |
| Ethnologue Language Names | art-330 | Kitonga |
| Ethnologue Language Names | art-330 | Siska |
| Ethnologue Language Names | art-330 | Sisya |
| Ethnologue Language Names | art-330 | Tonga |
| Ethnologue Language Names | art-330 | Western Nyasa |
| English | eng-000 | Tonga |
| français | fra-000 | tonga |
| русский | rus-000 | тонга |
| chiTonga | tog-000 | chiTonga |