Zawonia [zaˈvɔɲa] is a village in the administrative district of Gmina Chlewiska, within Szydłowiec County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 kilometres (5 mi) north of Chlewiska, 10 km (6 mi) north-west of Szydłowiec, and 102 km (63 mi) south of Warsaw.