Bezděz Castle () is a Gothic castle located some 20 km southeast of Česká Lípa, in the Liberec Region, Northern Bohemia, Czech Republic. Its construction began before 1264 by order of Přemysl Otakar II. The royal castle of Bezděz was one of the most important Gothic castles in the Czech lands until its destruction in the Thirty Years' War. Erected between 1260–1280 on the phonolite hill of Velký Bezděz, 604 m above sea level, it became the characteristic dominant feature of the local landscape and met the demands for an inaccessible as well as respectable royal castle.