Byszów [ˈbɨʂuf] is a village in the administrative district of Gmina Klimontów, within Sandomierz County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 5 kilometres (3 mi) east of Klimontów, 18 km (11 mi) west of Sandomierz, and 69 km (43 mi) south-east of the regional capital Kielce.