Książnice [kɕɔ̃ʐˈnit͡sɛ] is a village in the administrative district of Gmina Pacanów, within Busko County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 1 kilometre (1 mi) east of Pacanów, 26 km (16 mi) east of Busko-Zdrój, and 63 km (39 mi) south-east of the regional capital Kielce.