Kopana [kɔˈpana] is a village in the administrative district of Gmina Tarczyn, within Piaseczno County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) south of Tarczyn, 19 km (12 mi) south-west of Piaseczno, and 34 km (21 mi) south of Warsaw.