Ostry Kamień, Warmian-Masurian Voivodeship

Ostry Kamień is a village in the administrative district of Gmina Orneta, within Lidzbark County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 11 km north-west of Orneta, 37 km west of Lidzbark Warmiński, and 54 km north-west of the regional capital Olsztyn.

Before 1772 the area was part of Kingdom of Poland, and in 1772–1945 it belonged to Prussia and Germany (East Prussia).