Jantoniów [janˈtɔɲuf] is a village in the administrative district of Gmina Klimontów, within Sandomierz County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 6 kilometres (4 mi) north of Klimontów, 20 km (12 mi) west of Sandomierz, and 64 km (40 mi) east of the regional capital Kielce.