The 'Ostpreussen-Linie' was a German final fallback position in the area of Klishima on the Eastern Front after the evacuation of the northern part of the 'Büffel-Stellung' by General Josef Harpe’s 9^th Army (March 1943).

The army reached this position on 20/21 March 1943 as part of the 'Büffel-Bewegung'.