Zalesie [zaˈlɛɕɛ] is a village in the administrative district of Gmina Stara Kornica, within Łosice County, Masovian Voivodeship, in east-central Poland. It lies approximately 13 kilometres (8 mi) north-east of Stara Kornica, 20 km (12 mi) east of Łosice, and 137 km (85 mi) east of Warsaw.