Eduard Ernst Friedrich Hannibal Vogel von[1] Fal(c)kenstein (5 January 1797 – 6 April 1885) was a Prussian General der Infanterie.

While the cities of Hanover and Kassel fell to the Prussians, the armies of each state fled in an attempt to unite with the Bavarians, who were slowly advancing northward and reluctant to cross the Main.

After losing contact with the Hanoverians on 22 June and upon the advice of Otto von Bismarck, Falckenstein began marching south to Frankfurt to prevent a union of the disorganized forces of the German Confederation.

Moltke and King William I of Prussia were furious with Bismarck's interference and Falckenstein's slowness, ordering the general to attack the Hanoverians vigorously.

Arentschildt's army suffered greatly from their lack of supplies, however, and were cornered at Langensalza in Prussian Saxony by the advance of Falckenstein's three divisions from the north and, organized by Moltke, 9,000 troops under General Eduard von Flies from Gotha to the south.

Falckenstein's troops arrived the following day, and Arentschildt was forced to flee eastward into territory ringed by Prussian railways, leading to Hanover's surrender at Nordhausen on 29 June.

During the Franco-Prussian War of 1870-71, Falckenstein was Generalgouverneur der deutschen Küstenlande (General Governor of the German Coastal Lands) and resided in Hanover.