| English | eng-000 |
| Roscommon | |
| ISO 3166-2 | art-416 | IE-RN |
| български | bul-000 | Роскомън |
| dansk | dan-000 | Roscommon |
| Esperanto | epo-000 | Roskomono |
| français | fra-000 | Roscommon |
| Gaeilge | gle-000 | Ros Comáin |
| italiano | ita-000 | Roscommon Town |
| lietuvių | lit-000 | Roskomonas |
| lengua lumbarda | lmo-000 | Roscommon |
| Nederlands | nld-000 | Roscommon |
| nynorsk | nno-000 | Roscommon |
| polski | pol-000 | Roscommon |
| português | por-000 | Roscommon |
| русский | rus-000 | Роскоммон |
| svenska | swe-000 | Roscommon |
| Volapük | vol-000 | Roscommon |