The National Library of the Czech Republic is the central library of the Czech Republic. It is directed by the Ministry of Culture. The library's main building is located in the historical Clementinum building in the centre of Prague, where approximately half of its books are kept. The other half of the collection is stored in the district of Hostivař. The National Library is the biggest library in the Czech Republic, housing around 6 million documents. The library currently has around 20,000 registered readers. Although comprising mostly Czech texts, the library also stores older material from Turkey, Iran and India. The library also houses books for Charles University in Prague.

The Clementinum is a historic complex of buildings in Prague which houses the National Library of the Czech Republic.