| Ido | ido-000 |
| Belgia | |
| аҧсуа бызшәа | abk-000 | Белгиа |
| абаза бызшва | abq-000 | Бельгия |
| Bahsa Acèh | ace-000 | Bèlgia |
| Afrikaans | afr-000 | België |
| ܐܬܘܪܝܐ | aii-000 | ܒܠܓܝܟܐ |
| toskërishte | als-000 | Belgien |
| toskërishte | als-000 | Belgjika |
| አማርኛ | amh-000 | ቤልጂክ |
| አማርኛ | amh-000 | ቤልጅክ |
| አማርኛ | amh-000 | ቤልጅግ |
| Englisce sprǣc | ang-000 | Belgice |
| Englisce sprǣc | ang-000 | Belgium |
| العربية | arb-000 | بلجيكا |
| العربية | arb-000 | بِلْجِيكَا |
| Classical Arabic—ASJP | arb-001 | Bilğīkā |
| ארמית | arc-000 | ܒܠܓܝܟܐ |
| luenga aragonesa | arg-000 | Belchica |
| ISO 3166 alpha | art-006 | BE |
| Romániço | art-013 | belghia |
| asturianu | ast-000 | Bélxica |
| авар мацӀ | ava-000 | Бельгия |
| Aymara | aym-000 | Bilkiya |
| azərbaycanca | azj-000 | Belçika |
| آذربایجانی | azj-004 | بئلچیکا |
| башҡорт теле | bak-000 | Бельгия |
| bamanankan | bam-000 | Bɛliziki |
| boarisch | bar-000 | Belgien |
| беларуская | bel-000 | Бе́льгія |
| беларуская | bel-000 | Бельгія |
| беларуская | bel-000 | Бэльгія |
| тарашкевіца | bel-001 | Бэльгія |
| বাংলা | ben-000 | বেলজিয়াম |
| বাংলা | ben-000 | বেল্জিয়ম |
| Bislama | bis-000 | Beljem |
| Bislama | bis-000 | Beljiom |
| བོད་སྐད་ | bod-000 | པི་ལི་སི |
| བོད་སྐད་ | bod-000 | པི་ལི་ཧྲི |
| བོད་སྐད་ | bod-000 | པེར་ཅིན |
| bosanski | bos-000 | Belgija |
| বিষ্ণুপ্রিয়া মণিপুরী ভাষা | bpy-000 | বেলজিয়াম |
| brezhoneg | bre-000 | Belgia |
| буряад хэлэн | bua-000 | Бельги |
| basa ugi | bug-001 | Belgia |
| български | bul-000 | Бе́лгия |
| български | bul-000 | Белгия |
| bălgarski ezik | bul-001 | Belgija |
| català | cat-000 | Bèlgica |
| Chavacano | cbk-000 | Bélgica |
| binisayang Sinugboanon | ceb-000 | Belhika |
| čeština | ces-000 | Belgi |
| čeština | ces-000 | Belgie |
| нохчийн мотт | che-000 | Бельге |
| нохчийн мотт | che-000 | Бельгий |
| марий | chm-000 | Бельгий |
| ᏣᎳᎩ ᎧᏬᏂᎯᏍᏗ | chr-000 | ᏇᎵᏣᎻ |
| ѩзыкъ словѣньскъ | chu-000 | Бєлгїѥ |
| чӑваш | chv-000 | Бельги |
| Çăvaşla | chv-001 | Belgi |
| سۆرانی | ckb-000 | بەلجیکا |
| سۆرانی | ckb-000 | بەلژیک |
| 普通话 | cmn-000 | 比 |
| 普通话 | cmn-000 | 比利时 |
| 國語 | cmn-001 | 比利时 / 比利時 |
| 國語 | cmn-001 | 比利時 |
| Hànyǔ | cmn-003 | Bǐ lì shi |
| Hànyǔ | cmn-003 | Bǐlìshí |
| Kernowek | cor-000 | Pow Belg |
| lingua corsa | cos-000 | Belgica |
| Qırımtatar tili | crh-000 | Belçika |
| Къырымтатар тили | crh-001 | Belçika Белчика |
| 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 | Königreich Belgien |
| Zazaki | diq-000 | Belçıka |
| ދިވެހިބަސް | div-000 | ބަލްޖިއަމް |
| ދިވެހިބަސް | div-000 | ބެލްޖިއަމް |
| dolnoserbska reč | dsb-000 | Belgiska |
| Jóola-Fóoñi | dyo-000 | Belsik |
| རྫོང་ཁ་ | dzo-000 | བེལ་ཇིཡམ |
| རྫོང་ཁ་ | dzo-000 | བེལ་ཇིཡམ་ |
| eesti | ekk-000 | Belgia |
| ελληνικά | ell-000 | Βέλγιο |
| ελληνικά | ell-000 | Βέλγιον |
| ελληνικά | ell-000 | Βελγιο |
| Ellinika | ell-003 | Vélgio, Vélyio |
| English | eng-000 | Antwerpian |
| English | eng-000 | Arlon |
| English | eng-000 | Belgium |
| English | eng-000 | Campine |
| 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 | belgujo |
| euskara | eus-000 | Belgika |
| Ɛʋɛgbɛ | ewe-000 | Belgium |
| estremeñu | ext-000 | Bélgica |
| føroyskt | fao-000 | Belgia |
| suomi | fin-000 | Belgia |
| français | fra-000 | Belgique |
| français | fra-000 | Bruxellois |
| 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 |
| Frasche spräke | frr-000 | Bälgien |
| Frysk | fry-000 | Belgje |
| lenghe furlane | fur-000 | Belgje |
| lenghe furlane | fur-000 | Belgjiche |
| lenghe furlane | fur-000 | Belgjo |
| gagauz dili | gag-000 | Belgiya Бельгия |
| Gàidhlig | gla-000 | A' Bheilg |
| Gàidhlig | gla-000 | A’ Bheilg |
| Gàidhlig | gla-000 | Beilg |
| Gaeilge | gle-000 | An Bheilg |
| Gaeilge | gle-000 | An Ḃeilg |
| Gaeilge | gle-000 | Beilg |
| Gaeilge | gle-000 | Bheilg |
| Gaeilge | gle-000 | Ríocht na Beilge |
| Gaeilge | gle-000 | an Bheilg |
| galego | glg-000 | Bélxica |
| galego | glg-000 | Bélxica - België |
| yn Ghaelg | glv-000 | Yn Velg |
| 𐌲𐌿𐍄𐌹𐍃𐌺 | got-000 | 𐌱𐌴𐌻𐌲𐌹𐌰 |
| Schwizerdütsch | gsw-000 | Belgien |
| avañeʼẽ | gug-000 | Véyhika |
| ગુજરાતી | guj-000 | બેલ્જિયમ |
| ગુજરાતી | guj-000 | બેલ્જીયમ |
| Thong Boi | hak-003 | Pí-li-sṳ̀ |
| Hak-kâ-ngî | hak-005 | Pí-li-sṳ̀ |
| kreyòl ayisyen | hat-000 | Bèljik |
| Hausa | hau-000 | Belgium |
| ʻōlelo Hawaiʻi | haw-000 | Pelekiuma |
| Српскохрватски | hbs-000 | Belgija Белгија |
| Српскохрватски | hbs-000 | Белгија |
| Srpskohrvatski | hbs-001 | Belgija |
| Srpskohrvatski | hbs-001 | Белгија |
| עברית | heb-000 | בלגיה |
| ISO 259-3 | heb-001 | Belgiyah |
| 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 |
| արևելահայերեն | hye-000 | Բելգիա |
| hyw-001 | Belgia | |
| asụsụ Igbo | ibo-000 | Beljọm |
| 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 | Belgia |
| basa Jawa | jav-000 | Bèlgia |
| la lojban. | jbo-000 | Belgique |
| la lojban. | jbo-000 | beldjem. |
| la lojban. | jbo-000 | beldjym |
| la lojban. | jbo-000 | beljik |
| la lojban. | jbo-000 | camgu'e |
| 日本語 | jpn-000 | ベルギー |
| Nihongo | jpn-001 | Berugī |
| qaraqalpaq tili | kaa-000 | Belgiya Бельгия |
| Taqbaylit | kab-000 | Biljik |
| ⵜⴰⵇⴱⴰⵢⵍⵉⵜ | kab-002 | ⴱⵉⵍⵊⵉⴽ Biljik |
| Kĩkamba | kam-000 | Belgium |
| ಕನ್ನಡ | kan-000 | ಬೆಲ್ಜಿಯಮ್ |
| ქართული | kat-000 | ბელგია |
| Kartuli | kat-001 | belgia |
| қазақ | kaz-000 | Белгия |
| қазақ | kaz-000 | Бельгия بەلگيا |
| монгол | khk-000 | Belgium |
| монгол | khk-000 | Бельги |
| Mongol khel | khk-001 | Belgium |
| ភាសាខ្មែរ | khm-000 | បែលហ្សិក |
| ភាសាខ្មែរ | khm-000 | បែលហ្ស៊ិក |
| ភាសាខ្មែរ | khm-000 | ប៊ែលហ្ស៊ាម |
| ភាសាខ្មែរ | khm-000 | ព្រះរាជាណាចក្របែលហ្ស៊ិក |
| ikinyarwanda | kin-000 | Ububirigi |
| кыргыз | kir-000 | Бельгия |
| Kurmancî | kmr-000 | Beljîka |
| Kurmancî | kmr-000 | Belçîka |
| Kurmancî | kmr-000 | Belçîke |
| Kurmancî | kmr-000 | Belçîqa |
| كورمانجى | kmr-002 | [[بهلجیکا]] |
| كورمانجى | kmr-002 | بهلجیکا |
| 한국어 | kor-000 | 벨기에 |
| Hangungmal | kor-001 | Belgie |
| коми кыв | kpv-000 | Бельгия |
| къарачай-малкъар тил | krc-000 | Бельгия |
| Kölsch | ksh-000 | Belljie |
| къумукъ тил | kum-000 | Бельгия |
| לינגואה ג'ודיאו-איספאנייולה | lad-000 | בילגﬞיקה |
| Ladino | lad-001 | Belgio |
| Ladino | lad-001 | Beljika |
| ລາວ | lao-000 | ແບນຊິກ |
| latine | lat-000 | Belgia |
| latine | lat-000 | Belgica |
| latine | lat-000 | Belgium |
| лезги чӀал | lez-000 | Бельгия |
| lengua lígure | lij-000 | Belgiò |
| Limburgs | lim-000 | Belsj |
| Limburgs | lim-000 | Bèlsj |
| lingála | lin-000 | Bɛ́ljika |
| lingála | lin-000 | Bɛ́lɛjika |
| lingála | lin-000 | Bɛ́lɛzika |
| lietuvių | lit-000 | Belgija |
| lietuvių | lit-000 | Belgėjė |
| līvõ kēļ | liv-000 | Belgij |
| līvõ kēļ | liv-000 | Beļgij |
| Lëtzebuergesch | ltz-000 | Belsch |
| Lëtzebuergesch | ltz-000 | Belsch Belſch |
| Oluganda | lug-000 | Bubirigi |
| Oluganda | lug-000 | bubirigi |
| Oluluyia | luy-000 | Belgium |
| latviešu | lvs-000 | Beļģija |
| Lazuri | lzz-000 | ბელჩიკა Belçik’a |
| മലയാളം | mal-000 | ബെല്ജിയം |
| मराठी | mar-000 | बेल्जियम |
| Kĩmĩrũ | mer-000 | Belgium |
| македонски | mkd-000 | Белгија |
| Makedonski jazik | mkd-001 | Belgija |
| teny malagasy | mlg-000 | Belzika |
| Malti | mlt-000 | Belġju |
| reo Māori | mri-000 | Pehiamu |
| reo Māori | mri-000 | Peratiamu |
| မြန်မာဘာသာ | mya-000 | ဘယ္ဂ္ယီယမ္ |
| မြန်မာဘာသာ | mya-000 | ဘယ်လ်ဂျီယမ်နိုင်ငံ |
| မြန်မာဘာသာ | mya-000 | ဘယ်လ်ဂျီယံ |
| 台灣話 | nan-000 | Belgien |
| 台灣話 | nan-000 | 比利時 |
| Bân-lâm-gú | nan-005 | Belgien |
| napulitano | nap-000 | Belge |
| napulitano | nap-000 | Belgio |
| dorerin Naoero | nau-000 | Belgium |
| Diné bizaad | nav-000 | Belgii bikéyah |
| Diné bizaad | nav-000 | Bélgii bikéyah |
| Nāhuatlahtōlli | nci-000 | Belxicān |
| Plattdüütsch | nds-000 | Belgien |
| Nedersaksisch | nds-001 | België |
| 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 | 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 |
| chiCheŵa | nya-000 | Belgium |
| occitan | oci-000 | Belgica |
| Oriya | ori-000 | ବେଲଜିୟମ |
| ирон ӕвзаг | oss-000 | Бельги |
| Amanung Sisuan | pam-000 | Belgium |
| ਪੰਜਾਬੀ | pan-000 | ਬੈਲਜੀਅਮ |
| Papiamentu | pap-000 | Bélgika |
| پښتو ژبه | pbu-000 | بلجيم |
| پښتو ژبه | pbu-000 | بلجيک |
| پښتو ژبه | pbu-000 | بېلجيم |
| Pennsilfaanisch Deitsch | pdc-000 | Belgien |
| فارسی | pes-000 | بلژیک |
| fiteny Malagasy | plt-000 | Belzika |
| lenga piemontèisa | pms-000 | Belgi |
| پنجابی | pnb-000 | بیلجیم |
| polski | pol-000 | Belgia |
| polski | pol-000 | Królestwo Belgii |
| português | por-000 | Bélgica |
| Runa Simi | que-000 | Bilhika |
| Runa Simi | que-000 | Bélgica |
| Qusqu qhichwa simi | quz-000 | Bilhika |
| Qusqu qhichwa simi | quz-000 | Bélgica |
| Kalderašicko Romani čhib | rmy-000 | Beljiya |
| lingua rumantscha | roh-000 | Belgia |
| Romani čhib | rom-000 | Beljiya |
| română | ron-000 | Belgia |
| Лимба молдовеняскэ | ron-001 | Belgia Белӂия |
| русиньскый язык | rue-000 | Белґія |
| Kirundi | run-000 | Ububiligi |
| limba armãneascã | rup-000 | Belghia |
| русский | rus-000 | Бе́льгия |
| русский | rus-000 | Бельгия |
| russkij | rus-001 | Belgija |
| саха тыла | sah-000 | Бельгия |
| संस्कृतम् | san-000 | बेल्जियम |
| saṃskṛtam | san-001 | Beljiyama |
| lingua siciliana | scn-000 | Belgiu |
| Scots leid | sco-000 | Belgium |
| Žemaitiu | sgs-000 | Belgėjė |
| සිංහල | sin-000 | බෙල්ජියම |
| slovenčina | slk-000 | Belgicko |
| slovenščina | slv-000 | Belgija |
| slovenščina | slv-000 | Bélgija |
| davvisámegiella | sme-000 | Belgia |
| gagana faʻa Samoa | smo-000 | Peleseuma |
| Soomaaliga | som-000 | Beljiyam |
| español | spa-000 | Bélgica |
| shqip | sqi-000 | Belgjika |
| shqip | sqi-000 | Belgjikë |
| Sardu logudoresu | src-000 | Bélgiu |
| sardu | srd-000 | Belziu |
| sardu | srd-000 | Bélgiu |
| Sranantongo | srn-000 | Belgikondre |
| Sranantongo | srn-000 | Bergi |
| српски | srp-000 | Белгия |
| 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 |
| Ślůnsko godka | szl-000 | Belgja |
| reo Tahiti | tah-000 | Peretita |
| தமிழ் | tam-000 | பெல்சியம் |
| தமிழ் | tam-000 | பெல்ஜியம |
| தமிழ் | tam-000 | பெல்ஜியம் |
| tamiḻ | tam-002 | Peljiyam |
| tatar tele | tat-000 | Belgiä |
| татарча | tat-001 | Бельгия Belgiä بېلگىيە |
| తెలుగు | tel-000 | బెల్జియం |
| lia-tetun | tet-000 | Béljika |
| тоҷикӣ | tgk-000 | Белгия |
| тоҷикӣ | tgk-000 | Белгия بیلگیه Belgija |
| Tagalog | tgl-000 | Belhika |
| ภาษาไทย | tha-000 | ประเทศเบลเยียม |
| ภาษาไทย | tha-000 | ประเทศเบลเยี่ยม |
| ภาษาไทย | tha-000 | เบลเยียม |
| ภาษาไทย | tha-000 | เบลเยียม เบลเยี่ยม |
| ትግርኛ | tir-000 | በልጂዩም |
| lea fakatonga | ton-000 | Pelisiume |
| Tok Pisin | tpi-000 | Beljiam |
| Tok Pisin | tpi-000 | Belsum |
| türkmençe | tuk-000 | Belgiýa |
| Türkçe | tur-000 | Belçika |
| тыва дыл | tyv-000 | Бельгия |
| удмурт кыл | udm-000 | Бельгия |
| ئۇيغۇرچە | uig-000 | بېلگىيە |
| Uyghurche | uig-001 | Bélgiye |
| Уйғурчә | uig-003 | Белгийə |
| українська | ukr-000 | Бе́льгія |
| українська | ukr-000 | Бельгія |
| українська | ukr-000 | Бельґія |
| Latynytsia | ukr-001 | Belhija |
| اردو | urd-000 | بلجئیم |
| اردو | urd-000 | بلجیم |
| اردو | urd-000 | بیلجئیم |
| اردو | urd-000 | بیلجیئم |
| اردو | urd-000 | بیلجیم |
| oʻzbek | uzn-000 | Belgiya |
| łéngua vèneta | vec-000 | Belgio |
| vepsän kel’ | vep-000 | Belgii |
| 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 | Belgika |
| Winaray | war-000 | Belhika |
| lingaedje walon | wln-000 | Beldjike |
| kàllaama wolof | wol-000 | Beljik |
| kàllaama wolof | wol-000 | Belsik |
| хальмг келн | xal-000 | Бельгия |
| Sheta | xet-000 | Belga |
| მარგალური ნინა | xmf-000 | ბელგია |
| Nourmaund | xno-000 | Belgique |
| ייִדיש | ydd-000 | בעלגיע |
| èdè Yorùbá | yor-000 | Belgium |
| èdè Yorùbá | yor-000 | Bẹ́ljíọ̀m |
| 廣東話 | yue-000 | 比利时 |
| 廣東話 | yue-000 | 比利時 |
| Zeêuws | zea-000 | België |
| Bahasa Malaysia | zsm-000 | Belgium |
| isiZulu | zul-000 | iBeljuma |