| Language | Name | Code |
|---|---|---|
| Afrikaans | Keulen | af |
| Amharic | ኮልን | am |
| Aragonese | Colonia | an |
| ang | Colne | ang |
| Arabic | كولونيا | ar |
| arz | كولونيا | arz |
| Asturian | Colonia | ast |
| avk | Köln | avk |
| Azerbaijani | Köln | az |
| azb | کولن | azb |
| ban | Köln | ban |
| Bavarian | Köln | bar |
| Belarusian | Кёльн | be |
| be-tarask | Кёльн | be-tarask |
| Bulgarian | Кьолн | bg |
| Bengali | কোলন | bn |
| Breton | Köln | br |
| Bosnian | Köln | bs |
| Catalan | Colònia | ca |
| cbk-zam | Colonia | cbk-zam |
| Chechen | Коьльн | ce |
| Cebuano | Köln (kapital sa distrito nga gobyerno) | ceb |
| Central Kurdish | کۆلن | ckb |
| Corsican | Cologna | co |
| crh | Köln | crh |
| Czech | Kolín nad Rýnem | cs |
| csb | Kôln | csb |
| Chuvash | Кёльн | cv |
| Welsh | Cwlen | cy |
| Danish | Köln | da |
| German | Köln | de |
| de-at | Köln | de-at |
| de-ch | Köln | de-ch |
| diq | Köln | diq |
| dsb | Köln | dsb |
| Modern Greek (1453-) | Κολωνία | el |
| eml | Culògna | eml |
| English | Cologne | en |
| en-ca | Cologne | en-ca |
| en-gb | Cologne | en-gb |
| en-us | Cologne | en-us |
| Esperanto | Kolonjo | eo |
| Spanish | Colonia | es |
| Estonian | Köln | et |
| Basque | Kolonia | eu |
| ext | Colonia | ext |
| Persian | کلن | fa |
| Finnish | Köln | fi |
| Faroese | Köln | fo |
| French | Cologne | fr |
| frp | Köln | frp |
| frr | Köln | frr |
| fur | Köln | fur |
| Western Frisian | Keulen | fy |
| Irish | Köln | ga |
| Scottish Gaelic | Köln | gd |
| Galician | Colonia | gl |
| got | 𐌺𐌰𐌿𐌻𐍉𐌽𐌾𐌰 | got |
| gsw | Köln | gsw |
| Gujarati | કોલોગ્ને | gu |
| Manx | Koloin | gv |
| Hausa | Köln | ha |
| hak | Cologne | hak |
| Hebrew | קלן | he |
| Hindi | कोलोन | hi |
| Croatian | Köln | hr |
| Upper Sorbian | Köln | hsb |
| Hungarian | Köln | hu |
| Armenian | Քյոլն | hy |
| Interlingua (International Auxiliary Language Association) | Colonia | ia |
| Indonesian | Köln | id |
| Interlingue | Köln | ie |
| Ido | Köln | io |
| Icelandic | Köln | is |
| Italian | Colonia | it |
| Japanese | ケルン | ja |
| Javanese | Köln | jv |
| Georgian | კელნი | ka |
| kab | Köln | kab |
| Kongo | Köln | kg |
| Kazakh | Кёльн | kk |
| Kannada | ಕಲೋನ್ | kn |
| Korean | 쾰른 | ko |
| ksh | Kölle | ksh |
| Kurdish | Köln | ku |
| Kirghiz | Кёльн | ky |
| Latin | Colonia Agrippina | la |
| Luxembourgish | Köln | lb |
| lfn | Köln | lfn |
| Limburgan | Kölle | li |
| lij | Colonia | lij |
| lld | Köln | lld |
| lmo | Colonia | lmo |
| Lithuanian | Kelnas | lt |
| Latvian | Ķelne | lv |
| mdf | Кёльн | mdf |
| Malagasy | Köln | mg |
| mhr | Кёльн | mhr |
| min | Köln | min |
| Macedonian | Келн | mk |
| Malayalam | കൊളോൺ | ml |
| Mongolian | Кёльн | mn |
| Marathi | क्योल्न | mr |
| mrj | Кӧльн | mrj |
| Malay (macrolanguage) | Cologne | ms |
| Maltese | Köln | mt |
| mul | Köln | mul |
| Burmese | ကိုလုံးမြို့ | my |
| myv | Кёльн | myv |
| Nauru | Köln | na |
| nah | Köln | nah |
| nan | Köln | nan |
| nap | Köln | nap |
| Norwegian Bokmål | Köln | nb |
| Low German | Köln | nds |
| nds-nl | Keulen | nds-nl |
| Nepali (macrolanguage) | कोलोग्ने | ne |
| Dutch | Keulen | nl |
| Norwegian Nynorsk | Köln | nn |
| Narom | Köln | nrm |
| Occitan (post 1500) | Colonha | oc |
| Ossetian | Кёльн | os |
| Panjabi | ਕਲਨ | pa |
| Pampanga | Cologne | pam |
| pcd | Köln | pcd |
| Polish | Kolonia | pl |
| pms | Colònia | pms |
| pnb | کلون | pnb |
| Pushto | کولن | ps |
| Portuguese | Colónia | pt |
| pt-br | Colônia | pt-br |
| Quechua | Köln | qu |
| Romansh | Köln | rm |
| rmy | Cologne | rmy |
| Romanian | Köln | ro |
| Russian | Кёльн | ru |
| sat | ᱠᱳᱞᱳᱱ | sat |
| Sardinian | Colonia | sc |
| Sicilian | Culonia | scn |
| Scots | Cologne | sco |
| Sindhi | ڪولون | sd |
| sgs | Kiolns | sgs |
| sh | Köln | sh |
| shi | Kulunya | shi |
| Sinhala | කලෝන් | si |
| Slovak | Kolín nad Rýnom | sk |
| Slovenian | Köln | sl |
| Albanian | Këlni | sq |
| Serbian | Келн | sr |
| sr-el | Köln | sr-el |
| stq | Köln | stq |
| Swedish | Köln | sv |
| Swahili (macrolanguage) | Köln | sw |
| szl | Köln | szl |
| Tamil | கோல்ன் | ta |
| Telugu | కొలోన్ | te |
| Tajik | Кёлн | tg |
| Thai | โคโลญ | th |
| Tagalog | Cologne | tl |
| Turkish | Köln | tr |
| Tatar | Көлн | tt |
| tum | Cologne | tum |
| Twi | Köln | tw |
| udm | Кёльн | udm |
| Uighur | Kolon | ug |
| Ukrainian | Кельн | uk |
| Urdu | کلن (علاقہ) | ur |
| Uzbek | Kyoln | uz |
| vec | Cołogna | vec |
| vep | Köl'n | vep |
| Vietnamese | Köln | vi |
| vls | Köln | vls |
| Volapük | Köln | vo |
| vro | Köln | vro |
| Walloon | Köln | wa |
| war | Colonia | war |
| Wolof | Köln | wo |
| Wu Chinese | 科隆 | wuu |
| xmf | კელნი | xmf |
| Yiddish | קעלן | yi |
| yue | 古龍 (德國) | yue |
| zgh | ⴽⵓⵍⵓⵏⵢⴰ | zgh |
| Chinese | 科隆 | zh |
| zh-cn | 科隆 | zh-cn |
| zh-hans | 科隆 | zh-hans |
| zh-hant | 科隆 | zh-hant |
| zh-hk | 科隆 | zh-hk |
| zh-mo | 科隆 | zh-mo |
| zh-my | 科隆 | zh-my |
| zh-sg | 科隆 | zh-sg |
| zh-tw | 科隆 | zh-tw |
| Zulu | Köln | zu |