| Deutsch | deu-000 |
| Altfriesisch | |
| Afrikaans | afr-000 | Oudfries |
| ISO 639-3 | art-001 | ofs |
| ISO 639 | art-005 | ofs |
| ISO 639-PanLex | art-274 | ofs-000 |
| ISO 639-3 Inverted Names | art-291 | Frisian, Old |
| 普通话 | cmn-000 | 古弗里西亚语 |
| English | eng-000 | Old Frisian |
| français | fra-000 | vieux frison |
| Frysk | fry-000 | Aldfrysk |
| italiano | ita-000 | antico frisone |
| 日本語 | jpn-000 | 古フリジア語 |
| Nederlands | nld-000 | Oudfries |
| nynorsk | nno-000 | gamalfrisisk |
| português | por-000 | antigo frisão |
| español | spa-000 | antigua frisio |
| Fräiske Sproake | stq-000 | ooldfräisk |
| svenska | swe-000 | fornfrisiska |