Rzążew [ˈʐɔ̃ʐɛf] is a village in the administrative district of Gmina Zbuczyn, within Siedlce County, Masovian Voivodeship, in east-central Poland. It lies approximately 7 kilometres (4 mi) north-east of Zbuczyn, 15 km (9 mi) east of Siedlce, and 102 km (63 mi) east of Warsaw.