Kadaň is a town in Chomutov District in the Ústí nad Labem Region of the Czech Republic. It has about 18,000 inhabitants. It lies on the banks …Kadaň is a town in Chomutov District in the Ústí nad Labem Region of the Czech Republic. It has about 18,000 inhabitants. It lies on the banks of the Ohře river. Kadaň is a tourist centre with highlights being the Franciscan Monastery and the historical square with late Gothic Town Hall Tower. The historic town centre is well preserved and is protected by law as an urban monument reservation.