Tarnówka [tarˈnufka] is a village in the administrative district of Gmina Tarczyn, within Piaseczno County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) west of Tarczyn, 23 km (14 mi) south-west of Piaseczno, and 34 km (21 mi) south-west of Warsaw.