Radwan [ˈradvan] is a village in the administrative district of Gmina Białaczów, within Opoczno County, Łódź Voivodeship, in central Poland. It lies approximately 7 kilometres (4 mi) west of Białaczów, 11 km (7 mi) south-west of Opoczno, and 74 km (46 mi) south-east of the regional capital Łódź.