Kosy, Warmian-Masurian Voivodeship

Kosy (Quossen) is a village in the administrative district of Gmina Bartoszyce, within Bartoszyce County, Warmian-Masurian Voivodeship, in northern Poland, close to the border with the Kaliningrad Oblast of Russia. It lies approximately 11 km south-east of Bartoszyce and 49 km north-east of the regional capital Olsztyn.

The village has a population of 110.