Kamieniec [kaˈmjɛɲɛt͡s] is a village in the administrative district of Gmina Koprzywnica, within Sandomierz County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 5 kilometres (3 mi) east of Koprzywnica, 12 km (7 mi) south-west of Sandomierz, and 80 km (50 mi) south-east of the regional capital Kielce.