| ISO 639-3 Reference Names | art-289 |
| Old Dutch | |
| ISO 639-3 | art-001 | odt |
| ISO 639-PanLex | art-274 | odt-000 |
| ISO 639-3 Print Names | art-290 | Old Dutch |
| ISO 639-3 Inverted Names | art-291 | Dutch, Old |
| Deutsch | deu-000 | Altniederländisch |
| English | eng-000 | Old Dutch |
| suomi | fin-000 | muinaishollanti |
| Nederlands | nld-000 | Oudnederlands |
| bokmål | nob-000 | gammelnederlandsk |