- Source: Gadka, Masovian Voivodeship
Gadka (Polish pronunciation: [ˈɡatka]) is a village in the administrative district of Gmina Kołbiel, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) south of Kołbiel, 17 km (11 mi) south-east of Otwock, and 38 km (24 mi) south-east of Warsaw.