| ISO 639-2/B | art-003 |
| frr | |
| ISO 639-3 | art-001 | frr |
| ISO 639-2/T | art-002 | frr |
| ISO 639-3 Reference Names | art-289 | Northern Frisian |
| ISO 639-3 Print Names | art-290 | Northern Frisian |
| ISO 639-3 Inverted Names | art-291 | Frisian, Northern |
| 普通话 | cmn-000 | 北弗里西语 |
| Deutsch | deu-000 | Nordfriesisch |
| English | eng-000 | Northern Frisian |
| français | fra-000 | frison septentrional |
| Frasche spräke | frr-000 | Frasch |
| русский | rus-000 | севернофризский |