| English | eng-000 |
| Monmouthshire | |
| ISO 3166-2 | art-416 | GB-MON |
| brezhoneg | bre-000 | Menoe |
| Cymraeg | cym-000 | Powys |
| Cymraeg | cym-000 | Sir Fynwy |
| Deutsch | deu-000 | Monmouthshire |
| eesti | ekk-000 | Monmouthshire |
| English | eng-000 | Carmarthenshire |
| English | eng-000 | Mon. |
| Esperanto | epo-000 | Monmouthshire |
| français | fra-000 | Sir Fynwy |
| italiano | ita-000 | Monmouthshire |
| македонски | mkd-000 | Монмутшир |
| Nederlands | nld-000 | Monmouthshire |
| bokmål | nob-000 | Monmouthshire |
| polski | pol-000 | Monmouthshire |
| română | ron-000 | Monmouthshire |
| русский | rus-000 | Монмутшир |
| svenska | swe-000 | Monmouthshire |