| Mongol khel | khk-001 |
| Belgium | |
| Afrikaans | afr-000 | België |
| Classical Arabic—ASJP | arb-001 | Bilğīkā |
| luenga aragonesa | arg-000 | Belchica |
| asturianu | ast-000 | Bélxica |
| bosanski | bos-000 | Belgija |
| bălgarski ezik | bul-001 | Belgija |
| català | cat-000 | Bèlgica |
| čeština | ces-000 | Belgie |
| Çăvaşla | chv-001 | Belgi |
| Hànyǔ | cmn-003 | Bǐlìshí |
| Kernowek | cor-000 | Pow Belg |
| Cymraeg | cym-000 | Gwlad Belg |
| dansk | dan-000 | Belgien |
| Deutsch | deu-000 | Belgien |
| eesti | ekk-000 | Belgia |
| Ellinika | ell-003 | Vélgio, Vélyio |
| English | eng-000 | Belgium |
| Esperanto | epo-000 | Belgio |
| euskara | eus-000 | Belgika |
| suomi | fin-000 | Belgia |
| français | fra-000 | Belgique |
| Frysk | fry-000 | Belgje |
| lenghe furlane | fur-000 | Belgjiche |
| Gàidhlig | gla-000 | A' Bheilg |
| Gaeilge | gle-000 | An Bheilg |
| galego | glg-000 | Bélxica |
| kreyòl ayisyen | hat-000 | Bèljik |
| ISO 259-3 | heb-001 | Belgiyah |
| hrvatski | hrv-000 | Belgija |
| magyar | hun-000 | Belgium |
| hyw-001 | Belgia | |
| Ido | ido-000 | Belgia |
| interlingua | ina-000 | Belgica |
| bahasa Indonesia | ind-000 | Belgia |
| íslenska | isl-000 | Belgía |
| italiano | ita-000 | Belgio |
| la lojban. | jbo-000 | beldjym |
| Nihongo | jpn-001 | Berugī |
| Kartuli | kat-001 | belgia |
| Hangungmal | kor-001 | Belgie |
| latine | lat-000 | Belgia |
| Limburgs | lim-000 | Bèlsj |
| lietuvių | lit-000 | Belgija |
| Lëtzebuergesch | ltz-000 | Belsch |
| latviešu | lvs-000 | Beļģija |
| Makedonski jazik | mkd-001 | Belgija |
| Bân-lâm-gú | nan-005 | Belgien |
| dorerin Naoero | nau-000 | Belgium |
| Nederlands | nld-000 | België |
| bokmål | nob-000 | Belgia |
| occitan | oci-000 | Belgica |
| Papiamentu | pap-000 | Bélgika |
| polski | pol-000 | Belgia |
| português | por-000 | Bélgica |
| lingua rumantscha | roh-000 | Belgia |
| română | ron-000 | Belgia |
| russkij | rus-001 | Belgija |
| saṃskṛtam | san-001 | Beljiyama |
| slovenčina | slk-000 | Belgicko |
| slovenščina | slv-000 | Belgija |
| davvisámegiella | sme-000 | Belgia |
| español | spa-000 | Bélgica |
| shqip | sqi-000 | Belgjika |
| srpski | srp-001 | Belgija |
| svenska | swe-000 | Belgien |
| tamiḻ | tam-002 | Peljiyam |
| Tagalog | tgl-000 | Belhika |
| ภาษาไทย | tha-000 | ประเทศเบลเยียม |
| Türkçe | tur-000 | Belçika |
| Latynytsia | ukr-001 | Belhija |
| tiếng Việt | vie-000 | Bỉ |
| lingaedje walon | wln-000 | Beldjike |
| Bahasa Malaysia | zsm-000 | Belgium |