Kępa Nadbrzeska [ˈkɛmpa nadˈbʐɛska] is a village in the administrative district of Gmina Karczew, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) south of Karczew, 10 km (6 mi) south of Otwock, and 27 km (17 mi) south-east of Warsaw.