Szadki [ˈʂatki] is a village in the administrative district of Gmina Serock, within Legionowo County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) west of Serock, 13 km (8 mi) north-east of Legionowo, and 32 km (20 mi) north of Warsaw.