Poddębie [pɔdˈdɛmbjɛ] is a village in the administrative district of Gmina Wieliszew, within Legionowo County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) west of Wieliszew, 8 km (5 mi) north of Legionowo, and 29 km (18 mi) north of Warsaw.