| українська | ukr-000 |
| Сʼєрра-Леоне | |
| Afrikaans | afr-000 | Sierra Leone |
| toskërishte | als-000 | Siera Leone |
| አማርኛ | amh-000 | ሴየራ ሌዎን |
| العربية | arb-000 | سيراليون |
| luenga aragonesa | arg-000 | Sierra Leone |
| беларуская | bel-000 | Сьера-Леонэ |
| bosanski | bos-000 | Sijera Leone |
| български | bul-000 | Сиера Леоне |
| català | cat-000 | Sierra Leone |
| čeština | ces-000 | Sierra Leone |
| 普通话 | cmn-000 | 塞拉利昂 |
| 國語 | cmn-001 | 塞拉利昂 |
| Kernowek | cor-000 | Sierra Leon |
| dansk | dan-000 | Sierra Leone |
| Deutsch | deu-000 | Sierra Leone |
| eesti | ekk-000 | Sierra Leone |
| ελληνικά | ell-000 | Σιέρα Λεόνε |
| English | eng-000 | Sierra Leone |
| Esperanto | epo-000 | Siera-Leono |
| euskara | eus-000 | Sierra Leona |
| suomi | fin-000 | Sierra Leone |
| français | fra-000 | Sierra Leone |
| galego | glg-000 | Serra Leoa |
| Srpskohrvatski | hbs-001 | Sijera Leone |
| עברית | heb-000 | סיירה לאונה |
| hrvatski | hrv-000 | Sijera Leone |
| magyar | hun-000 | Sierra Leone |
| արևելահայերեն | hye-000 | Սիերա Լիոնե |
| Ido | ido-000 | Sierra Leone |
| bahasa Indonesia | ind-000 | Sierra Leone |
| íslenska | isl-000 | Síerra Leóne |
| italiano | ita-000 | Sierra Leone |
| 日本語 | jpn-000 | シエラレオネ |
| Kurmancî | kmr-000 | Sierra Leone |
| 한국어 | kor-000 | 시에라리온 |
| latine | lat-000 | Mons Leoninus |
| lietuvių | lit-000 | Siera Leonė |
| latviešu | lvs-000 | Sjerraleone |
| македонски | mkd-000 | Сиера Леоне |
| Plattdüütsch | nds-000 | Sierra Leone |
| Nederlands | nld-000 | Sierra Leone |
| nynorsk | nno-000 | Sierra Leone |
| bokmål | nob-000 | Sierra Leone |
| occitan | oci-000 | Sierra Leone |
| Amanung Sisuan | pam-000 | Sierra Leone |
| فارسی | pes-000 | سیرالئون |
| polski | pol-000 | Sierra Leone |
| português | por-000 | Serra Leoa |
| română | ron-000 | Sierra Leone |
| русский | rus-000 | Сьерра-Леоне |
| slovenčina | slk-000 | Sierra Leone |
| slovenščina | slv-000 | Sierra Leone |
| español | spa-000 | Sierra Leona |
| српски | srp-000 | Сијера Леоне |
| svenska | swe-000 | Sierra Leone |
| Kiswahili | swh-000 | Sierra Leone |
| Tagalog | tgl-000 | Sierra Leone |
| Türkçe | tur-000 | Sierra Leone |
| ئۇيغۇرچە | uig-000 | سېررالېئون |
| tiếng Việt | vie-000 | Sierra Leone |
| Volapük | vol-000 | Sieraleonän |
| Bahasa Malaysia | zsm-000 | Sierra Leone |