科兹洛杜伊是保加利亚的城镇，位于该国西北部多瑙河畔，距离首府弗拉察80公里，由弗拉察州负责管辖，海拔高度33米，该镇有核电厂，2010年人口14,247。

Kozloduy (Bulgarian:Козлодуй) is a town of 13,771 inhabitants in northwest Bulgaria, located in Vratsa Province, on the river Danube. The city was liberated from Ottoman rule on 23 November 1877 by the Romanian Army under the command of the Imperial Russian Army. Kozloduy is best known for the Kozloduy Nuclear Power Plant, Bulgaria's only (as of January 2011) nuclear power plant, which is situated nearby, as well as the second largest Bulgarian Danubian island, Kozloduy Island. The city is also famous for the "Radetski" ship, the boat in which the poet/revolutionary Hristo Botev and with 200 others crossed the Danube River in a final attempt to gather an army and liberate Bulgaria from the Ottoman Empire.