Krzyżtopór (Polish pronunciation: [kʂɨʂˈtɔpur]) is a castle located in the village of Ujazd, Iwaniska commune, Opatów County, Świętokrzyskie Voivodeship, in southern Poland.

[2] The castle was partially destroyed during the Swedish invasion known as The Deluge in 1655,[1] and then reduced to ruins during the war of the Bar Confederation by the Russians in 1770.

Several noble families (the Morsztyns, the Wiśniowieckis and the Pacs) lived in the best-preserved, western wing, but the castle otherwise remained in ruins.

A partial remodelling took place in 1971, and in 1980 the Polish Ministry of Internal Affairs decided to rebuild it for use as a rest area for officers.

Later, the name changed to Krzyżtopór, which is a compounding of two Polish words – krzyż ("cross", a symbol of the Catholic faith and Ossoliński's policies) and topór ("axe", the charge from the family's coat of arms).

The castle, built by Swiss engineer Wawrzyniec (Lawrence) Senes (probably born in Sent, Switzerland),[1] is a typical example of the so-called palazzo in fortezza[2] – an intermingling of both palace and fortress.

[5] For defensive purposes, the castle was erected upon a rocky hill, making it impossible for an enemy to organize an underground attack.

Krzyżtopór was furnished with amenities that were rarely seen in the 17th century, such as ventilation and heating system, and unique waterworks that provided all rooms with fresh water.

[1] On May 22, 2023 a famous South Korean K-pop boy group Enhypen released the music video for the song "Bite me" which was filmed in this castle.