| Language | Name | Code |
|---|---|---|
| ace | Incheon | ace |
| Afrikaans | Incheon | af |
| Arabic | إنتشون | ar |
| arz | انتشون | arz |
| Asturian | Incheon | ast |
| Azerbaijani | İnçxon | az |
| Bashkir | Инчхон | ba |
| ban | Incheon | ban |
| Belarusian | Інчхон | be |
| Bulgarian | Инчон | bg |
| Bislama | Incheon | bi |
| Bengali | ইন্ছন | bn |
| Breton | Incheon | br |
| Catalan | Inchon | ca |
| cdo | Incheon | cdo |
| Chechen | Инчхон | ce |
| Cebuano | Incheon | ceb |
| Central Kurdish | ئینچیۆن | ckb |
| crh | İnçhon | crh |
| crh-latn | İnçhon | crh-latn |
| Czech | Inčchon | cs |
| Welsh | Incheon | cy |
| Danish | Incheon | da |
| German | Incheon | de |
| Modern Greek (1453-) | Ίντσον | el |
| English | Incheon | en |
| en-ca | Incheon | en-ca |
| en-gb | Incheon | en-gb |
| Esperanto | Inĉono | eo |
| Spanish | Incheon | es |
| Estonian | Inch'ŏn | et |
| Basque | Incheon | eu |
| Persian | اینچئون | fa |
| Finnish | Incheon | fi |
| French | Incheon | fr |
| frr | Incheon | frr |
| Western Frisian | Incheon | fy |
| Irish | Incheon | ga |
| Galician | Incheon | gl |
| Gujarati | ઇન્ચેઓન | gu |
| Hausa | Incheon | ha |
| hak | Incheon | hak |
| Hebrew | אינצ'ון | he |
| Hindi | इंचियोन | hi |
| Croatian | Incheon | hr |
| Hungarian | Incshon | hu |
| Armenian | Ինչոն | hy |
| Indonesian | Incheon | id |
| Interlingue | Incheon | ie |
| ilo | Incheon | ilo |
| Ido | Incheon | io |
| Italian | Incheon | it |
| Japanese | 仁川広域市 | ja |
| Javanese | Incheon | jv |
| Georgian | ინჩხონი | ka |
| kaa | Incheon | kaa |
| Kazakh | Инчхон | kk |
| Kalaallisut | Incheon | kl |
| Khmer | អ៊ីនឆុន | km |
| Kannada | ಇಂಚಿಯೋನ್ | kn |
| Korean | 인천광역시 | ko |
| Kirghiz | Инчхон | ky |
| Latin | Incheon | la |
| lfn | Incheon | lfn |
| lmo | Incheon | lmo |
| Lithuanian | Inčonas | lt |
| Latvian | Inčhona | lv |
| lzh | 仁川 | lzh |
| Malagasy | Incheon | mg |
| Maori | Incheon | mi |
| Mongolian | Инчон | mn |
| Marathi | इंचेवॉन | mr |
| Malay (macrolanguage) | Incheon | ms |
| Maltese | Incheon | mt |
| Burmese | အင်ချွန်းမြို့ | my |
| mzn | اینچئون | mzn |
| nan | Incheon Kóng-he̍k-chhī | nan |
| Norwegian Bokmål | Incheon | nb |
| Dutch | Incheon | nl |
| Norwegian Nynorsk | Incheon | nn |
| Occitan (post 1500) | Incheon | oc |
| Ossetian | Инчхон | os |
| Panjabi | ਇਨਚਨ | pa |
| Polish | Inczon | pl |
| pnb | انچن | pnb |
| Portuguese | Incheon | pt |
| Quechua | Incheon | qu |
| Romanian | Incheon | ro |
| Russian | Инчхон | ru |
| Scots | Incheon | sco |
| Sinhala | ඉන්චියෝන් | si |
| Slovak | Inčchon | sk |
| Slovenian | Inčon | sl |
| Serbian | Инчон | sr |
| Sundanese | Incheon | su |
| Swedish | Incheon | sv |
| Swahili (macrolanguage) | Incheon | sw |
| szl | Incheon | szl |
| Tamil | இங்கியோன் | ta |
| Telugu | ఇంచియోన్ | te |
| Thai | อินช็อน | th |
| Tagalog | Incheon | tl |
| Turkish | İncheon | tr |
| Tatar | Инчон | tt |
| Ukrainian | Інчхон | uk |
| Urdu | ان چیون | ur |
| Uzbek | Inchxon | uz |
| vep | Inčhon | vep |
| Vietnamese | Incheon | vi |
| war | Incheon | war |
| Wu Chinese | 仁川 | wuu |
| xmf | ინჩონი | xmf |
| yue | 仁川 | yue |
| Chinese | 仁川 | zh |
| zh-cn | 仁川 | zh-cn |
| zh-hans | 仁川 | zh-hans |
| zh-hant | 仁川 | zh-hant |
| zh-hk | 仁川 | zh-hk |
| zh-tw | 仁川 | zh-tw |