| ISO 639-2/B | art-003 |
| niu | |
| ISO 639-3 | art-001 | niu |
| ISO 639-2/T | art-002 | niu |
| ISO 639-3 Reference Names | art-289 | Niuean |
| ISO 639-3 Print Names | art-290 | Niuean |
| ISO 639-3 Inverted Names | art-291 | Niuean |
| 普通话 | cmn-000 | 纽埃语 |
| Deutsch | deu-000 | Nieuanisch |
| English | eng-000 | Niuean |
| français | fra-000 | niué |
| ko e vagahau Niuē | niu-000 | ko e vagahau Niuē |
| русский | rus-000 | ниуэ |