Krzemień [ˈkʂɛmjɛɲ] is a village in the administrative district of Gmina Stromiec, within Białobrzegi County, Masovian Voivodeship, in east-central Poland. It lies approximately 9 kilometres (6 mi) north of Stromiec, 14 km (9 mi) north-east of Białobrzegi, and 57 km (35 mi) south of Warsaw.