| ISO 639-2/B | art-003 |
| dum | |
| ISO 639-3 | art-001 | dum |
| ISO 639-2/T | art-002 | dum |
| ISO 639-3 Reference Names | art-289 | Middle Dutch (ca. 1050-1350) |
| ISO 639-3 Print Names | art-290 | Middle Dutch (ca. 1050-1350) |
| ISO 639-3 Inverted Names | art-291 | Dutch, Middle (ca. 1050-1350) |
| 普通话 | cmn-000 | 中古荷兰语 |
| Deutsch | deu-000 | Mittelniederländisch |
| English | eng-000 | Middle Dutch |
| français | fra-000 | néerlandais moyen |
| русский | rus-000 | средненидерландский |
| español | spa-000 | neerlandés medio |