Antoninów [antɔˈninuf] is a village in the administrative district of Gmina Piaseczno, within Piaseczno County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) west of Piaseczno and 19 km (12 mi) south of Warsaw. It is ethnically Polish, though some foreigners are present in the community.