| Language | Name | Code |
|---|---|---|
| Afrikaans | Mersch | af |
| Aragonese | Mersch | an |
| Asturian | Mersch | ast |
| Bavarian | Miersch | bar |
| Breton | Mersch | br |
| Catalan | Mersch | ca |
| Cebuano | Mersch | ceb |
| Corsican | Mersch | co |
| Czech | Mersch | cs |
| Welsh | Mersch | cy |
| Danish | Mersch | da |
| German | Mersch | de |
| de-at | Mersch | de-at |
| de-ch | Mersch | de-ch |
| English | Mersch | en |
| en-ca | Mersch | en-ca |
| en-gb | Mersch | en-gb |
| Esperanto | Mersch | eo |
| Spanish | Mersch | es |
| Estonian | Mersch | et |
| Basque | Mersch | eu |
| Finnish | Mersch | fi |
| French | Mersch | fr |
| frp | Miersch | frp |
| fur | Mersch | fur |
| Irish | Mersch | ga |
| Scottish Gaelic | Mersch | gd |
| Galician | Mersch | gl |
| gsw | Mersch | gsw |
| Croatian | Mersch | hr |
| Hungarian | Mersch | hu |
| Interlingua (International Auxiliary Language Association) | Mersch | ia |
| Indonesian | Mersch | id |
| Interlingue | Mersch | ie |
| Ido | Mersch | io |
| Icelandic | Mersch | is |
| Italian | Mersch | it |
| Kongo | Mersch | kg |
| Luxembourgish | Miersch | lb |
| Limburgan | Miersch | li |
| lij | Mersch | lij |
| Malagasy | Mersch | mg |
| min | Mersch | min |
| Malay (macrolanguage) | Mersch | ms |
| nap | Mersch | nap |
| Norwegian Bokmål | Mersch | nb |
| Low German | Miersch | nds |
| nds-nl | Miersch | nds-nl |
| Dutch | Mersch | nl |
| Norwegian Nynorsk | Mersch | nn |
| Narom | Mersch | nrm |
| Occitan (post 1500) | Mersch | oc |
| pcd | Mersch | pcd |
| Polish | Mersch | pl |
| pms | Mersch | pms |
| Portuguese | Mersch | pt |
| pt-br | Mersch | pt-br |
| Romansh | Mersch | rm |
| Romanian | Mersch | ro |
| Sardinian | Mersch | sc |
| Sicilian | Mersch | scn |
| Scots | Mersch | sco |
| Slovak | Mersch | sk |
| Slovenian | Mersch | sl |
| sr-el | Mersch | sr-el |
| Swedish | Mersch | sv |
| Swahili (macrolanguage) | Mersch | sw |
| Turkish | Mersch | tr |
| vec | Mersch | vec |
| Vietnamese | Mersch | vi |
| vls | Mersch | vls |
| Volapük | Mersch | vo |
| Walloon | Mersch | wa |
| Wolof | Mersch | wo |
| Zulu | Mersch | zu |