Karkajmy [karˈkai̯mɨ] is a village in the administrative district of Gmina Orneta, within Lidzbark County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) south-west of Orneta, 33 km (21 mi) west of Lidzbark Warmiński, and 44 km (27 mi) north-west of the regional capital Olsztyn.

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