| Language | Name | Code |
|---|---|---|
| azb | کوزلودوی | azb |
| Belarusian | Казладуй | be |
| Bulgarian | Козлодуй | bg |
| Catalan | Kozlodui | ca |
| Cebuano | Kozloduy | ceb |
| Central Kurdish | کۆزلۆدوی | ckb |
| Czech | Kozloduj | cs |
| German | Kosloduj | de |
| Modern Greek (1453-) | Κοζλοντούι | el |
| English | Kozloduy | en |
| Spanish | Kozloduy | es |
| Persian | کوزلودوی | fa |
| French | Kozlodouï | fr |
| Irish | Kozloduy | ga |
| Hebrew | קוזלודוי | he |
| Hungarian | Kosloduj | hu |
| Armenian | Կոզլոդույ | hy |
| Japanese | コズロドゥイ | ja |
| Kazakh | Козлодуй (Враца облысы) | kk |
| Korean | 코즐로두이 | ko |
| Lithuanian | Kozlodujus | lt |
| Macedonian | Козлодуј | mk |
| Norwegian Bokmål | Kozloduy | nb |
| Dutch | Kozloduy | nl |
| Polish | Kozłoduj | pl |
| Portuguese | Kozloduj | pt |
| Romanian | Kozlodui | ro |
| Russian | Козлодуй | ru |
| rup | Coslodui | rup |
| Slovak | Kozloduj | sk |
| Slovenian | Kozloduj | sl |
| Serbian | Козлодуј | sr |
| sr-ec | Козлодуј | sr-ec |
| sr-el | Kozloduj | sr-el |
| Turkish | Kozludere | tr |
| Tatar | Козлодуй | tt |
| Ukrainian | Козлодуй | uk |
| Vietnamese | Kozloduy | vi |
| war | Kozloduy | war |
| Chinese | 科茲洛杜伊 | zh |
| zh-cn | 科兹洛杜伊 | zh-cn |
| zh-hans | 科兹洛杜伊 | zh-hans |
| zh-hant | 科茲洛杜伊 | zh-hant |
| zh-hk | 科茲洛杜伊 | zh-hk |
| zh-sg | 科兹洛杜伊 | zh-sg |
| zh-tw | 科茲洛杜伊 | zh-tw |