Niwki Książęce ([ˈnifki kɕɔ̃ˈʐɛnt͡sɛ]) is a village in the administrative district of Gmina Międzybórz, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 5 kilometres (3 mi) east of Międzybórz, 33 km (21 mi) north-east of Oleśnica, and 58 km (36 mi) north-east of the regional capital Wrocław.