| Language | Name | Code |
|---|---|---|
| Arabic | كيوستينديل | ar |
| arz | كيوستينديل | arz |
| Azerbaijani | Köstəndil | az |
| azb | کیوستندیل | azb |
| Belarusian | Кюстэндзіл | be |
| be-tarask | Кюстэндыл | be-tarask |
| Bulgarian | Кюстендил | bg |
| Bengali | কুস্তেন্ডিল | bn |
| Catalan | Kiustendil | ca |
| Chechen | Кюстендил | ce |
| Cebuano | Kyustendil (kapital sa rehiyon sa Bulgaria) | ceb |
| Central Kurdish | کیوستێندیل | ckb |
| Czech | Kjustendil | cs |
| Church Slavic | Кюстєндилъ | cu |
| Welsh | Kyustendil | cy |
| Danish | Kjustendil | da |
| German | Kjustendil | de |
| de-ch | Kjustendil | de-ch |
| Modern Greek (1453-) | Κιουστεντίλ | el |
| English | Kyustendil | en |
| en-ca | Kyustendil | en-ca |
| en-gb | Kyustendil | en-gb |
| Esperanto | Kjustendil | eo |
| Spanish | Kyustendil | es |
| Estonian | Kjustendil | et |
| Basque | Kiustendil | eu |
| Persian | کیوستندیل (شهر) | fa |
| Finnish | Kjustendil | fi |
| French | Kyoustendil | fr |
| frr | Kjustendil (Steed) | frr |
| Irish | Kyustendil | ga |
| Gujarati | ક્યુસ્ટેન્ડિલ | gu |
| Hebrew | קיוסטנדיל | he |
| Hindi | क्यूस्टेण्डिल | hi |
| Croatian | Ćustendil | hr |
| Hungarian | Kjusztendil | hu |
| Armenian | Կյուստենդիլ | hy |
| Indonesian | Kyustendil | id |
| Italian | Kjustendil | it |
| Japanese | キュステンディル | ja |
| Kazakh | Кюстендил | kk |
| kk-arab | كيۋستەندىيل | kk-arab |
| kk-cn | كيۋستەندىيل | kk-cn |
| kk-cyrl | Кюстендил | kk-cyrl |
| kk-kz | Кюстендил | kk-kz |
| kk-latn | Kyustendïl | kk-latn |
| kk-tr | Kyustendïl | kk-tr |
| Kannada | ಕ್ಯೂಸ್ಟೆಂಡಿಲ್ | kn |
| Korean | 큐스텐딜 | ko |
| Lithuanian | Kiustendilas | lt |
| Latvian | Kjustendila | lv |
| mdf | Кюстэндил | mdf |
| Macedonian | Ќустендил | mk |
| Marathi | क्यूस्टेणडाईल | mr |
| Malay (macrolanguage) | Kyustendil | ms |
| Norwegian Bokmål | Kyustendil | nb |
| Dutch | Kjoestendil | nl |
| Ossetian | Кюстендил | os |
| Polish | Kiustendił | pl |
| pnb | کیؤستندل | pnb |
| Portuguese | Kyustendil | pt |
| pt-br | Kyustendil | pt-br |
| Romanian | Kiustendil | ro |
| Russian | Кюстендил | ru |
| Scots | Kyustendil | sco |
| sh | Ćustendil | sh |
| Sinhala | ක්යුස්ටෙන්ඩිල් | si |
| Slovak | Kjustendil | sk |
| Slovenian | Kjustendil | sl |
| Albanian | Qystendili | sq |
| Serbian | Ћустендил | sr |
| sr-ec | Ћустендил | sr-ec |
| sr-el | Ćustendil | sr-el |
| Swedish | Kjustendil | sv |
| szl | Kjustendił | szl |
| Tamil | கியூஸ்டேண்டில் | ta |
| Telugu | క్యూస్టెండిల్ | te |
| Thai | คียูสเตนดิล | th |
| Turkish | Köstendil | tr |
| Tatar | Күстәндил | tt |
| Ukrainian | Кюстендил | uk |
| Urdu | کیوستندیل | ur |
| Vietnamese | Kyustendil | vi |
| war | Kyustendil | war |
| Chinese | 丘斯滕迪爾 | zh |
| zh-cn | 丘斯滕迪尔 | zh-cn |
| zh-hans | 丘斯滕迪尔 | zh-hans |
| zh-hant | 丘斯滕迪爾 | zh-hant |
| zh-hk | 丘斯滕迪爾 | zh-hk |
| zh-sg | 丘斯滕迪尔 | zh-sg |
| zh-tw | 丘斯滕迪爾 | zh-tw |