Radwan [ˈradvan] is a village in the administrative district of Gmina Iwaniska, within Opatów County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 5 kilometres (3 mi) south-east of Iwaniska, 15 km (9 mi) south-west of Opatów, and 53 km (33 mi) south-east of the regional capital Kielce.