Krzyżtopór (Polish pronunciation: [kʂɨʂˈtɔpur]) is a castle located in the village of Ujazd, Iwaniska commune, Opatów County, Świętokrzyskie Voivodeship, in southern Poland. It was originally built by a Polish nobleman and Voivode of Sandomierz, Krzysztof Ossoliński (1587-1645).