| Language | Name | Code |
|---|---|---|
| Afrikaans | Cotonou | af |
| Aragonese | Cotonou | an |
| Arabic | كوتونو | ar |
| arz | كوتونو | arz |
| Asturian | Cotonou | ast |
| Azerbaijani | Kotonu | az |
| azb | کوتونو | azb |
| Belarusian | Катану | be |
| be-tarask | Катану | be-tarask |
| Bulgarian | Котону | bg |
| Bengali | কোটোনো | bn |
| Breton | Cotonou | br |
| Bosnian | Cotonou | bs |
| Catalan | Cotonou | ca |
| Chechen | Котону | ce |
| Cebuano | Cotonou | ceb |
| Czech | Cotonou | cs |
| Danish | Cotonou | da |
| German | Cotonou | de |
| Modern Greek (1453-) | Κοτονού | el |
| English | Cotonou | en |
| Esperanto | Kotonuo | eo |
| Spanish | Cotonú | es |
| Estonian | Cotonou | et |
| Basque | Cotonou | eu |
| Persian | کوتونو | fa |
| Finnish | Cotonou | fi |
| fon | Kutɔnu | fon |
| French | Cotonou | fr |
| frp | Cotonou | frp |
| frr | Cotonou | frr |
| Irish | Cotonou | ga |
| Scottish Gaelic | Cotonou | gd |
| Galician | Cotonou | gl |
| gpe | Cotonou | gpe |
| Gujarati | કોટોનો | gu |
| guw | Kútɔ̀nú | guw |
| Hausa | Cotonou | ha |
| Hebrew | קוטונו | he |
| Hindi | कोटोनाउ | hi |
| Croatian | Cotonou | hr |
| Haitian | Kotonou | ht |
| Hungarian | Cotonou | hu |
| Armenian | Կոտոնու | hy |
| Indonesian | Cotonou | id |
| Interlingue | Cotonou | ie |
| Ido | Cotonou | io |
| Icelandic | Cotonou | is |
| Italian | Cotonou | it |
| Japanese | コトヌー | ja |
| Javanese | Cotonou | jv |
| Georgian | კოტონუ | ka |
| kbp | Kotonu | kbp |
| Kannada | ಕೊಟೊನೌ | kn |
| Korean | 코토누 | ko |
| Latin | Cotonou | la |
| Luxembourgish | Cotonou | lb |
| lmo | Cotonou | lmo |
| Lithuanian | Kotonu | lt |
| Latvian | Kotonu | lv |
| mdf | Котону | mdf |
| Malagasy | Cotonou | mg |
| Macedonian | Котону | mk |
| Marathi | कोतोनू | mr |
| mrj | Котону | mrj |
| Malay (macrolanguage) | Cotonou | ms |
| mzn | کوتونو | mzn |
| nan | Cotonou | nan |
| Norwegian Bokmål | Cotonou | nb |
| Dutch | Cotonou | nl |
| Norwegian Nynorsk | Cotonou | nn |
| Occitan (post 1500) | Cotonou | oc |
| Ossetian | Котону | os |
| Panjabi | ਕੋਤੋਨੂ | pa |
| Polish | Kotonu | pl |
| pms | Cotonou | pms |
| Pushto | کوتونو | ps |
| Portuguese | Cotonou | pt |
| Romanian | Cotonou | ro |
| Russian | Котону | ru |
| rup | Cotonou | rup |
| Scots | Cotonou | sco |
| Sindhi | ڪوٽونو | sd |
| sh | Cotonou | sh |
| Sinhala | කොටොනෞ | si |
| Slovak | Cotonou | sk |
| Slovenian | Cotonou | sl |
| smn | Cotonou | smn |
| Shona | Cotonou | sn |
| Serbian | Котону | sr |
| Swedish | Cotonou | sv |
| Swahili (macrolanguage) | Cotonou | sw |
| Tamil | கொட்டொனௌ | ta |
| Telugu | కొటొనౌ | te |
| Thai | กอตอนู | th |
| Turkish | Cotonou | tr |
| udm | Котону | udm |
| Ukrainian | Котону | uk |
| Urdu | کوتونوؤ | ur |
| vep | Kotonu | vep |
| Vietnamese | Cotonou | vi |
| war | Cotonou | war |
| Wu Chinese | 科托努 | wuu |
| Yoruba | Kútọ̀nú | yo |
| yue | 吉大奴 | yue |
| Chinese | 科托努 | zh |
| zh-hant | 柯多努 | zh-hant |