Janów [ˈjanuf] is a village in the administrative district of Gmina Karczew, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) south-east of Karczew, 7 km (4 mi) south of Otwock, and 26 km (16 mi) south-east of Warsaw.