Grotki [ˈɡrɔtki] is a village in the administrative district of Gmina Radzanów, within Białobrzegi County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) north-west of Radzanów, 14 km (9 mi) south-west of Białobrzegi, and 74 km (46 mi) south of Warsaw.