Krupin, Olecko County  Krupin (also "Markowice"; ) is a village in the administrative district of Gmina Wieliczki, within Olecko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately north of Wieliczki, east of Olecko, and east of the regional capital Olsztyn. Before 1945, the area was part of Germany (East Prussia).