Bojnice Castle is a medieval castle in Bojnice, Slovakia. It is a Romanesque castle with some original Gothic and Renaissance elements built in the 12th century. Bojnice Castle is one of the most visited castles in Slovakia, receiving hundreds of thousands of visitors every year and also being a popular filming stage for fantasy and fairy-tale movies. It was owned by Hungarian kings and nobleman from the 12th century until the territory became part of Czechoslovakia after the Treaty of Trianon in 1920 and was acquired by a Czech entrepreneur in 1939.

Bojnice is a historical town in west Slovakia located on the Nitra river, near the city of Prievidza. The town is situated just below the Bojnice Castle. It has a population of around 5,000.