Kaduy () is the name of several inhabited localities in Russia.
Urban localities Kaduy, Vologda Oblast, a work settlement in Kaduysky District of Vologda Oblast
Rural localities Kaduy, Irkutsk Oblast, a village in Nizhneudinsky District of Irkutsk Oblast Kaduy, Chuprinsky Selsoviet, Kaduysky District, Vologda Oblast, a village in Chuprinsky Selsoviet of Kaduysky District in Vologda Oblast