| Language | Name | Code |
|---|---|---|
| Afrikaans | Chennai | af |
| Amharic | ቸናይ | am |
| Arabic | تشيناي | ar |
| arz | تشيناى | arz |
| Assamese | চেন্নাই | as |
| Asturian | Chennai | ast |
| Azerbaijani | Çennai | az |
| azb | چنای | azb |
| Bashkir | Ченнаи | ba |
| ban | Chénnai | ban |
| bbc | Chennai | bbc |
| bcl | Chennai | bcl |
| Belarusian | Чэнаі | be |
| be-tarask | Чэнаі | be-tarask |
| Bulgarian | Ченай | bg |
| bho | चेन्नई | bho |
| Bengali | চেন্নাই | bn |
| bpy | চেন্নাই | bpy |
| Breton | Chennai | br |
| Bosnian | Chennai | bs |
| bxr | Ченнай | bxr |
| Catalan | Chennai | ca |
| Chechen | Ченнаи | ce |
| Cebuano | Chennai | ceb |
| Central Kurdish | چێنای | ckb |
| crh | Çennai | crh |
| crh-latn | Çennai | crh-latn |
| Czech | Čennaí | cs |
| Welsh | Chennai | cy |
| Danish | Chennai | da |
| German | Chennai | de |
| de-ch | Chennai | de-ch |
| diq | Çenay | diq |
| dty | चेन्नई | dty |
| Modern Greek (1453-) | Τσεννάι | el |
| English | Chennai | en |
| en-ca | Chennai | en-ca |
| en-gb | Chennai | en-gb |
| en-us | Chennai | en-us |
| Esperanto | Ĉenajo | eo |
| Spanish | Chennai | es |
| Estonian | Chennai | et |
| Basque | Chennai | eu |
| ext | Chennai | ext |
| Persian | چنای | fa |
| Finnish | Chennai | fi |
| Faroese | Chennai | fo |
| French | Madras | fr |
| frr | Chennai | frr |
| Irish | Chennai | ga |
| gan | 清奈 | gan |
| Galician | Chennai | gl |
| glk | مدرس | glk |
| gom | ಚೆನ್ನೈ | gom |
| Gujarati | ચેન્નઈ | gu |
| Manx | Chennai | gv |
| Hausa | Chennai | ha |
| Hebrew | צ'נאי | he |
| Hindi | चेन्नई | hi |
| hif | Chennai | hif |
| Croatian | Chennai | hr |
| Hungarian | Csennai | hu |
| Armenian | Չեննայ | hy |
| hyw | Չեննայ (Մատրաս) | hyw |
| Indonesian | Chennai | id |
| Interlingue | Chennai | ie |
| Ido | Chennai | io |
| Icelandic | Chennai | is |
| Italian | Chennai | it |
| Japanese | チェンナイ | ja |
| Georgian | ჩენაი | ka |
| kaa | Shennai | kaa |
| kge | Chennai | kge |
| kk-cyrl | Ченнай | kk-cyrl |
| Kalaallisut | Chennai | kl |
| Kannada | ಚೆನ್ನೈ | kn |
| Korean | 첸나이 | ko |
| Kashmiri | چنیی | ks |
| Cornish | Chennai | kw |
| Kirghiz | Ченнаи | ky |
| Latin | Chennai | la |
| lld | Chennai | lld |
| Lithuanian | Čenajus | lt |
| Latvian | Čennai | lv |
| mai | चेन्नई | mai |
| mdf | Чэнаи | mdf |
| Malagasy | Chennai | mg |
| mhr | Ченнаи | mhr |
| Maori | Chennai | mi |
| Macedonian | Ченај | mk |
| Malayalam | ചെന്നൈ | ml |
| Mongolian | Ченнай | mn |
| Marathi | चेन्नई | mr |
| Malay (macrolanguage) | Chennai | ms |
| Maltese | Chennai | mt |
| Burmese | ချန်နိုင်းမြို့ | my |
| mzn | مدرس | mzn |
| nan | Chennai | nan |
| Norwegian Bokmål | Chennai | nb |
| Nepali (macrolanguage) | चेन्नई | ne |
| new | चेन्नई | new |
| Dutch | Chennai | nl |
| Norwegian Nynorsk | Chennai | nn |
| Occitan (post 1500) | Chennai | oc |
| Oriya (macrolanguage) | ଚେନ୍ନାଇ | or |
| Ossetian | Ченнай | os |
| Panjabi | ਚੇਨੱਈ | pa |
| Pampanga | Chennai | pam |
| Polish | Ćennaj | pl |
| pnb | چنائی | pnb |
| Pushto | چينای | ps |
| Portuguese | Chennai | pt |
| pt-br | Chennai | pt-br |
| Quechua | Chennai | qu |
| Romanian | Chennai | ro |
| Russian | Ченнаи | ru |
| Sanskrit | चेन्नै | sa |
| sat | ᱪᱮᱱᱱᱟᱭ | sat |
| Scots | Chennai | sco |
| Sindhi | چنائي | sd |
| sh | Čenaj | sh |
| Sinhala | චෙන්නායි | si |
| Slovak | Chennai | sk |
| Slovenian | Čenaj | sl |
| Albanian | Çenai | sq |
| Serbian | Ченај | sr |
| Swedish | Chennai | sv |
| Swahili (macrolanguage) | Chennai | sw |
| szl | Madras | szl |
| Tamil | சென்னை | ta |
| Telugu | చెన్నై | te |
| Tajik | Ченнаи | tg |
| tg-cyrl | Ченнай | tg-cyrl |
| Thai | เจนไน | th |
| Turkmen | Çennaý | tk |
| Tagalog | Chennai | tl |
| Turkish | Çennay | tr |
| Tatar | Чинай | tt |
| Twi | Chennai | tw |
| Uighur | مادراس | ug |
| Ukrainian | Ченнай | uk |
| Urdu | چنئی | ur |
| Uzbek | Chennay | uz |
| vec | Chennai | vec |
| vep | Čennai | vep |
| Vietnamese | Chennai | vi |
| Volapük | Chennai | vo |
| war | Chennai | war |
| Wu Chinese | 金奈 | wuu |
| xmf | 金奈 | xmf |
| yue | 清奈 | yue |
| Chinese | 金奈 | zh |
| zh-cn | 金奈 | zh-cn |
| zh-hans | 金奈 | zh-hans |
| zh-hant | 欽奈 | zh-hant |
| zh-hk | 欽奈 | zh-hk |
| zh-sg | 真奈 | zh-sg |
| zh-tw | 清奈 | zh-tw |