Piasutno [pjaˈsutnɔ] (German: Piassutten) is a village in the administrative district of Gmina Świętajno, within Szczytno County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 4 kilometres (2 mi) north of Świętajno, 16 km (10 mi) east of Szczytno, and 52 km (32 mi) south-east of the regional capital Olsztyn.