Grodzisk [ˈɡrɔd͡ʑisk] is a village in the administrative district of Gmina Zbuczyn, within Siedlce County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south-west of Zbuczyn, 15 km (9 mi) south-east of Siedlce, and 99 km (62 mi) east of Warsaw.