Sapy [ˈsapɨ] is a village in the administrative district of Gmina Puszcza Mariańska, within Żyrardów County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) south of Puszcza Mariańska, 15 km (9 mi) south-west of Żyrardów, and 55 km (34 mi) south-west of Warsaw.