Błonie [ˈbwɔɲɛ] is a village in the administrative district of Gmina Prażmów, within Piaseczno County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Prażmów, 16 km (10 mi) south of Piaseczno, and 32 km (20 mi) south of Warsaw.