| asturianu | ast-000 |
| Belgradu | |
| Afrikaans | afr-000 | Belgrado |
| toskërishte | als-000 | Beogradi |
| አማርኛ | amh-000 | በልግራድ |
| amarəñña | amh-001 | Bälgrad |
| العربية | arb-000 | بلغراد |
| Classical Arabic—ASJP | arb-001 | B?lġrād |
| azərbaycanca | azj-000 | Belqrad |
| тарашкевіца | bel-001 | Бялград |
| biełaruskaja łacinka | bel-002 | Belgrad |
| biełaruskaja łacinka | bel-002 | Bjalgrad |
| bosanski | bos-000 | Beograd |
| brezhoneg | bre-000 | Beograd |
| български | bul-000 | Белград |
| bălgarski ezik | bul-001 | Belgrad |
| català | cat-000 | Belgrad |
| čeština | ces-000 | Bělehrad |
| ѩзыкъ словѣньскъ | chu-000 | Бѣ́лъ Гра́дъ |
| ѩзыкъ словѣньскъ | chu-000 | Бѣлъ Градъ |
| чӑваш | chv-000 | Белград |
| Çăvaşla | chv-001 | Belgrad |
| 普通话 | cmn-000 | 贝尔格莱德 |
| Hànyǔ | cmn-003 | Bèiěrgélàidé |
| Qırımtatar tili | crh-000 | Belgrad |
| Cymraeg | cym-000 | Beograd |
| dansk | dan-000 | Beograd |
| Deutsch | deu-000 | Belgrad |
| Zazaki | diq-000 | Belgrad |
| dolnoserbska reč | dsb-000 | Běłogrod |
| eesti | ekk-000 | Belgrad |
| ελληνικά | ell-000 | Βελιγράδι |
| Ellinika | ell-003 | Veligrádi |
| English | eng-000 | Belgrade |
| Esperanto | epo-000 | Beogrado |
| euskara | eus-000 | Belgrad |
| føroyskt | fao-000 | Beograd |
| suomi | fin-000 | Belgrad |
| français | fra-000 | Belgrade |
| lenga arpitana | frp-000 | Bèlgrade |
| Gàidhlig | gla-000 | Belgrade |
| Gaeilge | gle-000 | Béalgrád |
| galego | glg-000 | Belgrado |
| yn Ghaelg | glv-000 | Belgraaid |
| kreyòl ayisyen | hat-000 | Bèlgrad |
| Srpskohrvatski | hbs-001 | Beograd |
| עברית | heb-000 | בלגרד |
| ISO 259-3 | heb-001 | Belgrad |
| hrvatski | hrv-000 | Beograd |
| hornjoserbšćina | hsb-000 | Běłohród |
| magyar | hun-000 | Belgrád |
| արևելահայերեն | hye-000 | Բելգրադ |
| hyw-001 | Belgrad | |
| Ido | ido-000 | Belgrade |
| bahasa Indonesia | ind-000 | Beograd |
| íslenska | isl-000 | Belgrad |
| italiano | ita-000 | Belgrado |
| basa Jawa | jav-000 | Beograd |
| 日本語 | jpn-000 | ベオグラード |
| Nihongo | jpn-001 | Beogurādo |
| ქართული | kat-000 | ბელგრადი |
| Kurmancî | kmr-000 | Belgrad |
| 한국어 | kor-000 | 베오그라드 |
| Hangungmal | kor-001 | Beogeuradeu |
| Komi | kpv-001 | Belgrad |
| latine | lat-000 | Belgradum |
| lengua lígure | lij-000 | Belgraddo |
| lietuvių | lit-000 | Belgradas |
| latviešu | lvs-000 | Belgrada |
| Malayalam | mal-001 | Belgrēḍ |
| मराठी | mar-000 | बेलग्रेड |
| MaraaThii | mar-001 | Belagreḍ |
| македонски | mkd-000 | Белград |
| Makedonski jazik | mkd-001 | Belgrad |
| Malti | mlt-000 | Belgrad |
| Plattdüütsch | nds-000 | Belgrad |
| Nederlands | nld-000 | Belgrado |
| nynorsk | nno-000 | Beograd |
| bokmål | nob-000 | Beograd |
| Novial | nov-000 | Beograd |
| occitan | oci-000 | Belgrad |
| Isfahani | pes-001 | B?lgrād |
| lenga piemontèisa | pms-000 | Belgrad |
| polski | pol-000 | Belgrad |
| português | por-000 | Belgrado |
| Runa Simi | que-000 | Beograd |
| română | ron-000 | Belgrad |
| limba armãneascã | rup-000 | Biligrad |
| русский | rus-000 | Белград |
| russkij | rus-001 | Belgrad |
| Saxa tyla | sah-001 | Belgrad |
| lingua siciliana | scn-000 | Belgradu |
| slovenčina | slk-000 | Belehrad |
| slovenščina | slv-000 | Beograd |
| davvisámegiella | sme-000 | Belgrad |
| español | spa-000 | Belgrado |
| shqip | sqi-000 | Beogradi |
| српски | srp-000 | Београд |
| srpski | srp-001 | Beograd |
| svenska | swe-000 | Belgrad |
| Kiswahili | swh-000 | Belgrad |
| reo Tahiti | tah-000 | Beograd |
| தமிழ் | tam-000 | பெல்கிறேட் |
| tamiḻ | tam-002 | Pelkiṟēṭ |
| тоҷикӣ | tgk-000 | Белград |
| tojikī | tgk-001 | Belgrad |
| ภาษาไทย | tha-000 | เบลเกรด |
| Türkçe | tur-000 | Belgrad |
| українська | ukr-000 | Белград |
| Latynytsia | ukr-001 | Belhrad |
| łéngua vèneta | vec-000 | Belgrado |
| tiếng Việt | vie-000 | Belgrade |
| tiếng Việt | vie-000 | Beograd |
| Volapük | vol-000 | Beograd |
| Winaray | war-000 | Belgrade |
| yidish | ydd-001 | Belgrad |