Osowiec [ɔˈsɔvjɛt͡s] is a village in the administrative district of Gmina Żabia Wola, within Grodzisk Mazowiecki County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) west of Żabia Wola, 9 km (6 mi) south of Grodzisk Mazowiecki, and 32 km (20 mi) south-west of Warsaw.