Krutyń [ˈkrutɨɲ] (German: Krutinnen) is a village in the administrative district of Gmina Piecki, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 9 kilometres (6 mi) south-east of Piecki, 22 km (14 mi) south-east of Mrągowo, and 63 km (39 mi) east of the regional capital Olsztyn. Before 1945 the area was part of Germany (East Prussia). The village has a population of 260.