Kawęczyn [kaˈvɛnt͡ʂɨn] is a village in the administrative district of Gmina Tarczyn, within Piaseczno County, Masovian Voivodeship, in east-central Poland. It lies approximately 7 kilometres (4 mi) south-east of Tarczyn, 17 km (11 mi) south-west of Piaseczno, and 33 km (21 mi) south of Warsaw.