Landkreis Heydekrug

Landkreis Heydekrug (1818–1945) was an administrative territorial entity of East Prussia, located in Lithuania Minor.

In 1913, Karkeln and surrounding inland towns (those south of the yellow line in the map) were administratively transferred to Kreis Niederung.

[1][additional citation(s) needed] After World War I, Landkreis Heydekrug and other areas north of the yellow line became part of Memel Territory administered by Lithuania.

Today, the northern part belongs to Lithuania and the southern part belongs to the Slavsky District of the Kaliningrad Oblast, Russia.

The district had a Lithuanian majority, with a significant German minority.