| Language | Name | Code |
|---|---|---|
| ace | Ottawa | ace |
| ady | Оттава | ady |
| Afrikaans | Ottawa | af |
| Amharic | ኦታዋ | am |
| Aragonese | Ottawa | an |
| ang | Ottawa | ang |
| Arabic | أوتاوا | ar |
| ary | ؤطاوا | ary |
| arz | اوتاوا | arz |
| Asturian | Ottawa | ast |
| atj | Ottawa | atj |
| Avaric | Оттава | av |
| Aymara | Ottawa | ay |
| Azerbaijani | Ottava | az |
| azb | اوتاوا | azb |
| Bashkir | Оттава | ba |
| ban | Ottawa | ban |
| Bavarian | Ottawa | bar |
| Belarusian | Атава | be |
| be-tarask | Атава | be-tarask |
| Bulgarian | Отава | bg |
| bho | ओटावा | bho |
| Bengali | অটোয়া | bn |
| Tibetan | ཨོ་ཏ་ཝ། | bo |
| Breton | Ottawa | br |
| Bosnian | Ottawa | bs |
| bxr | Оттава | bxr |
| Catalan | Ottawa | ca |
| cbk-zam | Ottawa | cbk-zam |
| cdo | Ottawa | cdo |
| Chechen | Оттава | ce |
| Cebuano | Ottawa | ceb |
| chr | ᎠᏔᏩ, ᎨᎾᏓ | chr |
| Central Kurdish | ئۆتاوا | ckb |
| Corsican | Ottawa | co |
| crh | Ottava | crh |
| crh-latn | Ottava | crh-latn |
| Czech | Ottawa | cs |
| Church Slavic | Отава | cu |
| Chuvash | Оттава | cv |
| Welsh | Ottawa | cy |
| Danish | Ottawa | da |
| German | Ottawa | de |
| de-ch | Ottawa | de-ch |
| diq | Ottawa | diq |
| dsb | Ottawa | dsb |
| dty | ओटोवा | dty |
| Modern Greek (1453-) | Οττάβα | el |
| English | Ottawa | en |
| en-ca | Ottawa | en-ca |
| en-gb | Ottawa | en-gb |
| Esperanto | Otavo | eo |
| Spanish | Ottawa | es |
| Estonian | Ottawa | et |
| Basque | Ottawa | eu |
| ext | Ottawa | ext |
| Persian | اتاوا | fa |
| Finnish | Ottawa | fi |
| Faroese | Ottawa | fo |
| French | Ottawa | fr |
| frp | Ottawa | frp |
| frr | Ottawa | frr |
| fur | Ottawa | fur |
| Western Frisian | Ottawa | fy |
| Irish | Ottawa | ga |
| gcr | Otawa | gcr |
| Scottish Gaelic | Ottawa | gd |
| Galician | Otava | gl |
| Guaraní | Ottawa | gn |
| got | 𐍉𐍄𐍄𐌰𐍅𐌰 | got |
| gsw | Ottawa | gsw |
| Gujarati | ઓટાવા | gu |
| Hausa | Ottawa | ha |
| hak | Ottawa | hak |
| haw | ʻOttawa | haw |
| Hebrew | אוטווה | he |
| Hindi | ओटावा | hi |
| hif | Ottawa | hif |
| Croatian | Ottawa | hr |
| Upper Sorbian | Ottawa | hsb |
| Haitian | Otawa | ht |
| Hungarian | Ottawa | hu |
| Armenian | Օտտավա | hy |
| hyw | Օթաուա | hyw |
| Interlingua (International Auxiliary Language Association) | Ottawa | ia |
| Indonesian | Ottawa | id |
| Interlingue | Ottawa | ie |
| Ido | Ottawa | io |
| Icelandic | Ottawa | is |
| Italian | Ottawa | it |
| Inuktitut | ᐊᑐᕚ/atavaa | iu |
| Japanese | オタワ | ja |
| jam | Atawa | jam |
| Javanese | Ottawa | jv |
| Georgian | ოტავა | ka |
| kaa | Ottava | kaa |
| kab | Ottawa | kab |
| kge | Ottawa | kge |
| Kazakh | Оттава | kk |
| kk-cyrl | Оттава | kk-cyrl |
| Kalaallisut | Ottawa | kl |
| Khmer | អូតាវ៉ា | km |
| Kannada | ಆಟ್ಟಾವಾ | kn |
| Korean | 오타와 | ko |
| Kurdish | Ottawa | ku |
| Cornish | Ottawa | kw |
| Kirghiz | Оттава | ky |
| Latin | Ottava | la |
| lad | Ottawa | lad |
| Luxembourgish | Ottawa | lb |
| lfn | Ottawa | lfn |
| Limburgan | Ottawa | li |
| lij | Ottawa | lij |
| lmo | Ottawa | lmo |
| Lingala | Ottawa | ln |
| lrc | اتاوا | lrc |
| Lithuanian | Otava | lt |
| Latvian | Otava | lv |
| lzh | 渥太華 | lzh |
| mdf | Оттава | mdf |
| Malagasy | Ottawa | mg |
| min | Ottawa | min |
| Macedonian | Отава | mk |
| Malayalam | ഓട്ടവ | ml |
| Mongolian | Оттава | mn |
| Marathi | ओटावा | mr |
| Malay (macrolanguage) | Ottawa | ms |
| Maltese | Ottawa | mt |
| Burmese | အော့တဝမြို့ | my |
| myv | Оттава ош | myv |
| mzn | اوتآوآ | mzn |
| nah | Ottahua | nah |
| nan | Ottawa | nan |
| Norwegian Bokmål | Ottawa | nb |
| Low German | Ottawa | nds |
| Dutch | Ottawa | nl |
| Norwegian Nynorsk | Ottawa | nn |
| nov | Ottawa | nov |
| Narom | Ottawa | nrm |
| nso | Ottawa | nso |
| Navajo | Tótsoh Nílį́ | nv |
| Occitan (post 1500) | Ottawa | oc |
| Livvi | Ottava | olo |
| Oriya (macrolanguage) | ଓଟାୱା | or |
| Ossetian | Оттавæ | os |
| Panjabi | ਓਟਾਵਾ | pa |
| pap | Ottawa | pap |
| pcd | Ottawa | pcd |
| pdc | Ottawa | pdc |
| pih | Ottawa | pih |
| Polish | Ottawa | pl |
| pms | Ottawa | pms |
| pnb | اوٹاوا | pnb |
| pnt | Οττάβα | pnt |
| Pushto | آټاوا | ps |
| Portuguese | Ottawa | pt |
| pt-br | Ottawa | pt-br |
| Quechua | Ottawa | qu |
| Romansh | Ottawa | rm |
| Romanian | Ottawa | ro |
| Russian | Оттава | ru |
| rup | Ottawa | rup |
| sah | Оттава | sah |
| Sardinian | Ottawa | sc |
| Sicilian | Ottawa | scn |
| Scots | Ottawa | sco |
| Sindhi | اوٽاوا | sd |
| sgs | Otava | sgs |
| sh | Ottawa | sh |
| shi | Uṭawa | shi |
| Sinhala | ඕටවා | si |
| Slovak | Ottawa | sk |
| Slovenian | Ottawa | sl |
| Samoan | Ottawa | sm |
| Shona | Ottawa | sn |
| Somali | Ottawa | so |
| Albanian | Ottawa | sq |
| Serbian | Отава | sr |
| stq | Ottawa | stq |
| Swedish | Ottawa | sv |
| Swahili (macrolanguage) | Ottawa | sw |
| szl | Ottawa | szl |
| Tamil | ஒட்டாவா | ta |
| Telugu | అటావా | te |
| Tajik | Оттава | tg |
| tg-cyrl | Оттава | tg-cyrl |
| Thai | ออตตาวา | th |
| Turkmen | Ottawa | tk |
| Tagalog | Ottawa | tl |
| tly | Ottava | tly |
| tok | ma tomo Alawa | tok |
| Tok Pisin | Ottawa | tpi |
| Turkish | Ottawa | tr |
| Tatar | Оттава | tt |
| Twi | Ottawa | tw |
| udm | Оттава | udm |
| Uighur | Ottawa | ug |
| Ukrainian | Оттава | uk |
| Urdu | اوٹاوا | ur |
| Uzbek | Ottava | uz |
| vec | Ottawa | vec |
| vep | Ottav | vep |
| Vietnamese | Ottawa | vi |
| vls | Ottawa | vls |
| Volapük | Ottawa | vo |
| war | Ottawa | war |
| Wolof | Ottawa | wo |
| Wu Chinese | 渥太华 | wuu |
| xmf | ოტავა | xmf |
| Yiddish | אטאווא | yi |
| Yoruba | Ottawa | yo |
| yue | 渥太華 | yue |
| Zhuang | Ottawa | za |
| zea | Ottawa | zea |
| Chinese | 渥太華 | zh |
| zh-cn | 渥太华 | zh-cn |
| zh-hans | 渥太华 | zh-hans |
| zh-hant | 渥太華 | zh-hant |
| zh-hk | 渥太華 | zh-hk |
| zh-mo | 渥太華 | zh-mo |
| zh-my | 渥太华 | zh-my |
| zh-sg | 渥太华 | zh-sg |
| zh-tw | 渥太華 | zh-tw |