Zalesie, Pisz County
Zalesie  () is a village in the administrative district of Gmina Biała Piska, within Pisz County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately  north-east of Biała Piska,  east of Pisz, and  east of the regional capital Olsztyn.

Before 1945 the area was part of Germany (East Prussia).