| English | eng-000 |
| Campine | |
| Afrikaans | afr-000 | België |
| ܐܬܘܪܝܐ | aii-000 | ܒܠܓܝܟܐ |
| አማርኛ | amh-000 | ቤልጅግ |
| Englisce sprǣc | ang-000 | Belgice |
| العربية | arb-000 | بلجيكا |
| luenga aragonesa | arg-000 | Belchica |
| ISO 3166 alpha | art-006 | BE |
| asturianu | ast-000 | Bélxica |
| azərbaycanca | azj-000 | Belçika |
| boarisch | bar-000 | Belgien |
| беларуская | bel-000 | Бельгія |
| বাংলা | ben-000 | বেলজিয়াম |
| བོད་སྐད་ | bod-000 | པེར་ཅིན |
| bosanski | bos-000 | Belgija |
| বিষ্ণুপ্রিয়া মণিপুরী ভাষা | bpy-000 | বেলজিয়াম |
| brezhoneg | bre-000 | Belgia |
| български | bul-000 | Белгия |
| català | cat-000 | Bèlgica |
| binisayang Sinugboanon | ceb-000 | Belhika |
| čeština | ces-000 | Belgi |
| čeština | ces-000 | Belgie |
| čeština | ces-000 | Kempen |
| нохчийн мотт | che-000 | Бельге |
| чӑваш | chv-000 | Бельги |
| 普通话 | cmn-000 | 比利时 |
| 國語 | cmn-001 | 比利時 |
| Hànyǔ | cmn-003 | Bǐ lì shi |
| Kernowek | cor-000 | Pow Belg |
| lingua corsa | cos-000 | Belgica |
| Qırımtatar tili | crh-000 | Belçika |
| kaszëbsczi jãzëk | csb-000 | Belgijskô |
| Cymraeg | cym-000 | Belg |
| Cymraeg | cym-000 | Gwlad Belg |
| dansk | dan-000 | Belgien |
| Deutsch | deu-000 | Belgien |
| Deutsch | deu-000 | De Kempen |
| Deutsch | deu-000 | Kempen |
| Deutsch | deu-000 | Kempenland |
| Deutsch | deu-000 | Königreich Belgien |
| Zazaki | diq-000 | Belçıka |
| ދިވެހިބަސް | div-000 | ބެލްޖިއަމް |
| dolnoserbska reč | dsb-000 | Belgiska |
| རྫོང་ཁ་ | dzo-000 | བེལ་ཇིཡམ་ |
| eesti | ekk-000 | Belgia |
| ελληνικά | ell-000 | Βέλγιο |
| ελληνικά | ell-000 | Βελγιο |
| English | eng-000 | Antwerpian |
| English | eng-000 | Arlon |
| English | eng-000 | Charleroi |
| English | eng-000 | Flemish Brabant |
| English | eng-000 | Ghent |
| English | eng-000 | Hainaut |
| English | eng-000 | Kingdom of Belgium |
| English | eng-000 | Liège |
| English | eng-000 | Mechelen |
| English | eng-000 | Mons |
| English | eng-000 | Namur |
| English | eng-000 | Walloon Brabant |
| English | eng-000 | Ypres |
| Esperanto | epo-000 | Belgio |
| Esperanto | epo-000 | Belgujo |
| Esperanto | epo-000 | Kampino |
| Esperanto | epo-000 | belgujo |
| euskara | eus-000 | Belgika |
| Ɛʋɛgbɛ | ewe-000 | Belgium |
| føroyskt | fao-000 | Belgia |
| suomi | fin-000 | Belgia |
| français | fra-000 | Belgique |
| français | fra-000 | Bruxellois |
| français | fra-000 | Campine |
| français | fra-000 | Flamand |
| français | fra-000 | Liégeois |
| français | fra-000 | Namurois |
| français | fra-000 | Royaume de Belgique |
| français | fra-000 | Wallon |
| lenga arpitana | frp-000 | Bèlg·ique |
| Frysk | fry-000 | Belgje |
| lenghe furlane | fur-000 | Belgjiche |
| lenghe furlane | fur-000 | Belgjo |
| Gàidhlig | gla-000 | A’ Bheilg |
| Gàidhlig | gla-000 | Beilg |
| Gaeilge | gle-000 | An Bheilg |
| Gaeilge | gle-000 | Beilg |
| Gaeilge | gle-000 | an Bheilg |
| galego | glg-000 | Bélxica |
| galego | glg-000 | Bélxica - België |
| yn Ghaelg | glv-000 | Yn Velg |
| Schwizerdütsch | gsw-000 | Belgien |
| ગુજરાતી | guj-000 | બેલ્જિયમ |
| Thong Boi | hak-003 | Pí-li-sṳ̀ |
| kreyòl ayisyen | hat-000 | Bèljik |
| ʻōlelo Hawaiʻi | haw-000 | Pelekiuma |
| Srpskohrvatski | hbs-001 | Belgija |
| Srpskohrvatski | hbs-001 | Белгија |
| עברית | heb-000 | בלגיה |
| हिन्दी | hin-000 | बेल्जियम |
| hiMxI | hin-004 | beljiyama |
| hrvatski | hrv-000 | Belgija |
| hrvatski | hrv-000 | Kraljevina Belgija |
| hornjoserbšćina | hsb-000 | Belgiska |
| magyar | hun-000 | Belgium |
| magyar | hun-000 | Kempen |
| արևելահայերեն | hye-000 | Բելգիա |
| Ido | ido-000 | Belgia |
| Inuktitut | iku-001 | Belgia |
| Interlingue | ile-000 | Belgia |
| Iloko | ilo-000 | Belgium |
| interlingua | ina-000 | Belgica |
| interlingua | ina-000 | Belgio |
| bahasa Indonesia | ind-000 | Belgia |
| bahasa Indonesia | ind-000 | negeri Belgia |
| íslenska | isl-000 | Belgía |
| italiano | ita-000 | Belgio |
| basa Jawa | jav-000 | Bèlgia |
| la lojban. | jbo-000 | Belgique |
| 日本語 | jpn-000 | ベルギー |
| Taqbaylit | kab-000 | Biljik |
| Kĩkamba | kam-000 | Belgium |
| ქართული | kat-000 | ბელგია |
| қазақ | kaz-000 | Белгия |
| монгол | khk-000 | Бельги |
| ភាសាខ្មែរ | khm-000 | បែលហ្សិក |
| ភាសាខ្មែរ | khm-000 | ព្រះរាជាណាចក្របែលហ្ស៊ិក |
| ikinyarwanda | kin-000 | Ububirigi |
| кыргыз | kir-000 | Бельгия |
| كورمانجى | kmr-002 | بهلجیکا |
| 한국어 | kor-000 | 벨기에 |
| коми кыв | kpv-000 | Бельгия |
| Kölsch | ksh-000 | Belljie |
| Ladino | lad-001 | Beljika |
| latine | lat-000 | Belgia |
| latine | lat-000 | Campina |
| lengua lígure | lij-000 | Belgiò |
| Limburgs | lim-000 | Belsj |
| lingála | lin-000 | Bɛ́ljika |
| lietuvių | lit-000 | Belgija |
| lietuvių | lit-000 | Belgėjė |
| līvõ kēļ | liv-000 | Belgij |
| Lëtzebuergesch | ltz-000 | Belsch |
| Oluluyia | luy-000 | Belgium |
| latviešu | lvs-000 | Beļģija |
| മലയാളം | mal-000 | ബെല്ജിയം |
| मराठी | mar-000 | बेल्जियम |
| Kĩmĩrũ | mer-000 | Belgium |
| македонски | mkd-000 | Белгија |
| teny malagasy | mlg-000 | Belzika |
| Malti | mlt-000 | Belġju |
| reo Māori | mri-000 | Pehiamu |
| 台灣話 | nan-000 | Belgien |
| napulitano | nap-000 | Belge |
| napulitano | nap-000 | Belgio |
| dorerin Naoero | nau-000 | Belgium |
| Diné bizaad | nav-000 | Belgii bikéyah |
| Nāhuatlahtōlli | nci-000 | Belxicān |
| Plattdüütsch-Neddersassisch | nds-002 | Belgien |
| Plattdüütsch-Neddersassisch | nds-002 | België |
| Nederlands | nld-000 | België |
| Nederlands | nld-000 | België |
| Nederlands | nld-000 | Hasselt |
| Nederlands | nld-000 | Kempen |
| Nederlands | nld-000 | Landen |
| Nederlands | nld-000 | Maneblusser |
| Nederlands | nld-000 | Turnhout |
| nynorsk | nno-000 | Belgia |
| bokmål | nob-000 | Belgia |
| Novial | nov-000 | Belgia |
| नेपाली | npi-000 | बेल्जियम |
| occitan | oci-000 | Belgica |
| ирон ӕвзаг | oss-000 | Бельги |
| Amanung Sisuan | pam-000 | Belgium |
| Papiamentu | pap-000 | Bélgika |
| پښتو ژبه | pbu-000 | بلجيم |
| Pennsilfaanisch Deitsch | pdc-000 | Belgien |
| فارسی | pes-000 | بلژیک |
| lenga piemontèisa | pms-000 | Belgi |
| polski | pol-000 | Belgia |
| polski | pol-000 | Królestwo Belgii |
| português | por-000 | Bélgica |
| Qusqu qhichwa simi | quz-000 | Bilhika |
| Kalderašicko Romani čhib | rmy-000 | Beljiya |
| lingua rumantscha | roh-000 | Belgia |
| română | ron-000 | Belgia |
| limba armãneascã | rup-000 | Belghia |
| русский | rus-000 | Бельгия |
| संस्कृतम् | san-000 | बेल्जियम |
| lingua siciliana | scn-000 | Belgiu |
| Scots leid | sco-000 | Belgium |
| slovenčina | slk-000 | Belgicko |
| slovenščina | slv-000 | Belgija |
| davvisámegiella | sme-000 | Belgia |
| español | spa-000 | Bélgica |
| shqip | sqi-000 | Belgjika |
| shqip | sqi-000 | Belgjikë |
| Sranantongo | srn-000 | Belgikondre |
| Sranantongo | srn-000 | Bergi |
| српски | srp-000 | Белгија |
| srpski | srp-001 | Belgija |
| Fräiske Sproake | stq-000 | Belgien |
| basa Sunda | sun-000 | Bélgia |
| svenska | swe-000 | Belgien |
| Kiswahili | swh-000 | Ubelgiji |
| Ślůnsko godka | szl-000 | Belgijo |
| தமிழ் | tam-000 | பெல்சியம் |
| தமிழ் | tam-000 | பெல்ஜியம் |
| తెలుగు | tel-000 | బెల్జియం |
| lia-tetun | tet-000 | Béljika |
| тоҷикӣ | tgk-000 | Белгия |
| Tagalog | tgl-000 | Belhika |
| ภาษาไทย | tha-000 | ประเทศเบลเยียม |
| ภาษาไทย | tha-000 | เบลเยียม |
| Tok Pisin | tpi-000 | Beljiam |
| Türkçe | tur-000 | Belçika |
| удмурт кыл | udm-000 | Бельгия |
| ئۇيغۇرچە | uig-000 | بېلگىيە |
| українська | ukr-000 | Бельгія |
| اردو | urd-000 | بلجئیم |
| اردو | urd-000 | بیلجئیم |
| oʻzbek | uzn-000 | Belgiya |
| łéngua vèneta | vec-000 | Belgio |
| tiếng Việt | vie-000 | Bỉ |
| Vlaams | vls-000 | België |
| Volapük | vol-000 | Belgayn |
| Volapük | vol-000 | Belgän |
| võro kiil | vro-000 | Belgiä |
| Winaray | war-000 | Belhika |
| lingaedje walon | wln-000 | Beldjike |
| lingaedje walon | wln-000 | Campine |
| kàllaama wolof | wol-000 | Beljik |
| ייִדיש | ydd-000 | בעלגיע |
| èdè Yorùbá | yor-000 | Belgium |
| Bahasa Malaysia | zsm-000 | Belgium |