Zalesie [zaˈlɛɕɛ] is a village in the administrative district of Gmina Świętajno, within Olecko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 7 kilometres (4 mi) north-west of Świętajno, 17 km (11 mi) west of Olecko, and 119 km (74 mi) east of the regional capital Olsztyn.