| Language | Name | Code |
|---|---|---|
| ace | Vientiane | ace |
| Afrikaans | Vientiane | af |
| Amharic | ቭየንትዬን | am |
| Aragonese | Vientiane | an |
| Arabic | فيينتيان | ar |
| ary | ڤيينتان | ary |
| arz | فيينتيان | arz |
| Assamese | ভিয়েনটিয়েন | as |
| Asturian | Vientián | ast |
| Azerbaijani | Vyentyan | az |
| Bashkir | Вьентьян | ba |
| ban | Vientiane | ban |
| bcl | Biyentiyan | bcl |
| Belarusian | В’енцьян | be |
| be-tarask | Віент’ян | be-tarask |
| bew | Wiang Cendana | bew |
| Bulgarian | Виентян | bg |
| bjn | Wiangcan | bjn |
| blk | ဝေင်ꩻဗီယန်ထျန်း | blk |
| Bengali | ভিয়েনতিয়েন | bn |
| Tibetan | ཝིན་ཆིའང་ | bo |
| Breton | Vientiane | br |
| Bosnian | Vientiane | bs |
| bxr | Вьентьян | bxr |
| Catalan | Vientiane | ca |
| cdo | Vientiane | cdo |
| Chechen | Вьентьян | ce |
| Cebuano | Biyentiyan | ceb |
| Central Kurdish | ڤیێنتیان | ckb |
| Corsican | Vientiane | co |
| Czech | Vientiane | cs |
| Chuvash | Вьентьян | cv |
| Welsh | Vientiane | cy |
| Danish | Vientiane | da |
| German | Vientiane | de |
| de-ch | Vientiane | de-ch |
| Modern Greek (1453-) | Βιεντιάν | el |
| English | Vientiane | en |
| en-ca | Vientiane | en-ca |
| en-gb | Vientiane | en-gb |
| Esperanto | Vjentiano | eo |
| Spanish | Vientián | es |
| Estonian | Viangchan | et |
| Basque | Vientian | eu |
| Persian | وینتیان | fa |
| Finnish | Vientiane | fi |
| Fijian | Vientiane | fj |
| French | Vientiane | fr |
| frp | Vientiane | frp |
| frr | Vientiane | frr |
| Western Frisian | Wiën Tsjan | fy |
| Irish | Vientiane | ga |
| Scottish Gaelic | Vientiane | gd |
| Galician | Vientiane | gl |
| Guaraní | Vientiã | gn |
| Gujarati | વિયેંટિએન | gu |
| Hausa | Vientiane | ha |
| hak | Vieng Chan | hak |
| Hebrew | ויינטיאן | he |
| Hindi | व्यिंचन | hi |
| hif | Vientiane | hif |
| Croatian | Vientiane | hr |
| Upper Sorbian | Vientiane | hsb |
| Haitian | Vyantyàn | ht |
| Hungarian | Vientián | hu |
| Armenian | Վիենտյան | hy |
| Indonesian | Vientiane | id |
| Interlingue | Vientiane | ie |
| ilo | Bientian | ilo |
| Ido | Vientiane | io |
| Icelandic | Vientiane | is |
| Italian | Vientiane | it |
| Japanese | ヴィエンチャン | ja |
| Georgian | ვიენტიანი | ka |
| kaa | Ventyan | kaa |
| kge | Vientiane | kge |
| Kazakh | Вьентьян | kk |
| Khmer | វាំងចន្ទន៍ | km |
| Kannada | ವಿಯೆನ್ ಟಿಯೇನ್ | kn |
| Korean | 비엔티안 | ko |
| Kirghiz | Вьентьян | ky |
| Latin | Vientiana | la |
| Luxembourgish | Vientiane | lb |
| lij | Vientiane | lij |
| lmo | Vientiane | lmo |
| Lingala | Vientiane | ln |
| Lao | ວຽງຈັນ | lo |
| lrc | وینتیان | lrc |
| Lithuanian | Vientianas | lt |
| Latvian | Vjenčana | lv |
| mai | भियनटियान | mai |
| mdf | Виентьян | mdf |
| Malagasy | Vientiane | mg |
| min | Vientiane | min |
| Macedonian | Виентијан | mk |
| Malayalam | വിയന്റിയൻ | ml |
| Mongolian | Вьентьян | mn |
| Marathi | व्हिआंतियान | mr |
| Malay (macrolanguage) | Vientiane | ms |
| Maltese | Vientiane | mt |
| mwl | Vientiane | mwl |
| Burmese | ဗီယင်ကျန်းမြို့ | my |
| mzn | وینتیان | mzn |
| nah | Vianchan | nah |
| nan | Vientiane | nan |
| Norwegian Bokmål | Vientiane | nb |
| Nepali (macrolanguage) | भियनटियान | ne |
| Dutch | Vientiane | nl |
| Norwegian Nynorsk | Vientiane | nn |
| nov | Vientiane | nov |
| Navajo | Tsinłání Bináʼátłʼinii | nv |
| Chichewa | Vientiane | ny |
| Occitan (post 1500) | Viengchan | oc |
| Livvi | Vjentjan | olo |
| Ossetian | Вьентьян | os |
| Panjabi | ਵਿਆਂਗ ਚਾਨ | pa |
| pap | Vientiane | pap |
| Polish | Wientian | pl |
| pms | Vientiane | pms |
| pnb | وینتیان | pnb |
| Pushto | وینتیان | ps |
| Portuguese | Vienciana | pt |
| pt-br | Vienciana | pt-br |
| Romanian | Vientiane | ro |
| Russian | Вьентьян | ru |
| sat | ᱵᱷᱤᱭᱮᱱᱛᱤᱭᱮᱱ | sat |
| Sardinian | Vientiane | sc |
| Sicilian | Vientiane | scn |
| Scots | Vientiane | sco |
| sh | Vientiane | sh |
| Sinhala | වියන්ශියෙන් | si |
| Slovak | Vientian | sk |
| Slovenian | Vientiane | sl |
| smn | Vientiane | smn |
| Shona | Vientiane | sn |
| Albanian | Vientiane | sq |
| Serbian | Вијентијан | sr |
| Swedish | Vientiane | sv |
| Swahili (macrolanguage) | Vientiane | sw |
| szl | Wjentjan | szl |
| szy | Yung-cen | szy |
| Tamil | வியஞ்சான் | ta |
| Telugu | వియన్శాన్ | te |
| Tajik | Вйентян | tg |
| Thai | เวียงจันทน์ | th |
| Tagalog | Biyentiyan | tl |
| tly | Ventjan | tly |
| Turkish | Vientiane | tr |
| udm | Вьентьян | udm |
| Uighur | Wyéntyan | ug |
| Ukrainian | В'єнтьян | uk |
| Urdu | وینتیان | ur |
| Uzbek | Ventyan | uz |
| vec | Vientiane | vec |
| vep | V'jent'jan | vep |
| Vietnamese | Viêng Chăn | vi |
| Volapük | Viengtjan | vo |
| war | Biyentiyan | war |
| Wu Chinese | 万象 | wuu |
| xmf | ვიენტიანი | xmf |
| Yoruba | Vientiane | yo |
| yue | 永珍 | yue |
| Zhuang | Fanhyiengh | za |
| Chinese | 永珍 | zh |
| zh-cn | 万象 | zh-cn |
| zh-hans | 万象 | zh-hans |
| zh-hant | 永珍 | zh-hant |
| zh-hk | 永珍 | zh-hk |
| zh-mo | 永珍 | zh-mo |
| zh-my | 永珍 | zh-my |
| zh-sg | 永珍 | zh-sg |
| zh-tw | 永珍 | zh-tw |