Orzysz [ˈɔʐɨʂ] (German: Arys, Lithuanian: Arys) is a town in Pisz County, Warmian-Masurian Voivodeship, Poland, with 7,512 inhabitants (2007). It is located on Orzysz Lake.
Before 1945 the area was part of Germany (East Prussia). After World War II the region was placed under Polish administration and ethnically cleansed according to the post-war Potsdam Agreement. The native German populace was expelled and replaced with Poles.
Coordinates: 53°48′20″N 21°56′45″E / 53.80556°N 21.94583°E