Zalesie [zaˈlɛɕɛ] is a village in the administrative district of Gmina Wąsosz, within Grajewo County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 7 kilometres (4 mi) east of Wąsosz, 14 km (9 mi) south of Grajewo, and 68 km (42 mi) north-west of the regional capital Białystok.