The 'Gneisenau-Linie' was the German alternative designation for the 'Grüne-Linie' positions in the extreme south of the Eastern Front (March/April 1944).

This defensive line in Crimea extended in a large semi-circle, centred on Sevastopol, from Evpatoriya on the west coast to Alushta on the south coast, and included Simferopol and Yalta. The area inside the 'Gneisenau-Linie' was held by Generaloberst Ferdinand Schörner’s (from 31 March 1944 Generaloberst Erwin Jaenecke’s) 17^th Army during the German rearguard action and subsequent evacuation of Crimea after the defences of the line had been easily swept aside by the 'Crimean Strategic Offensive Operation'.