Pieńki Zarębskie [ˈpjɛɲki zaˈrɛmpskʲɛ] is a village in the administrative district of Gmina Żabia Wola, within Grodzisk Mazowiecki County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) south-east of Żabia Wola, 14 km (9 mi) south-east of Grodzisk Mazowiecki, and 31 km (19 mi) south-west of Warsaw.