Zalesie [zaˈlɛɕɛ] is a village in the administrative district of Gmina Sępólno Krajeńskie, within Sępólno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 11 kilometres (7 mi) north-east of Sępólno Krajeńskie and 50 km (31 mi) north-west of Bydgoszcz.