Kladno is a city in the Central Bohemian Region of the Czech Republic, in the historical region of Bohemia. It has about 68,000 inhabitants. It is the largest city in the region and has a rich industrial history.

The Central Bohemian Region is an administrative unit of the Czech Republic, located in the central part of its historical region of Bohemia. Its administrative centre is in the Czech capital Prague, which lies in the centre of the region. However, the city is not part of it but is a region of its own.