Duke Ferdinand of Brunswick-Wolfenbüttel (12 January 1721 – 3 July 1792) was a German military officer best known for his participation in the Seven Years' War.

[2] During ten years of peace, he was in the closest touch with the military work of Frederick the Great, who supervised the instruction of the guard battalion, and sought to make it a model of the whole Prussian army.

In the first campaign of the Seven Years' War, Ferdinand commanded one of the Prussian columns which converged upon Dresden, and in the operations which led up to the surrender of the Saxon army at Pirna (1756).

He found this army dejected by a reverse and a capitulation, yet within a week of his taking up the command, he assumed the offensive, and thus began the career of victory which made his reputation as a soldier.

[4] By Spring 1758 he had driven the French out of Hanover and back across the River Rhine which gave him a reputation in Britain as a talented General, and helped boost support for British involvement in the German war.

In spite of this Ferdinand still posed a not insignificant threat and it was believed he was poised to attack the Austrian Netherlands or even northern Italy.

He devoted most of the small income he received from his various offices and the rewards given to him by the allied princes to compensate those who had suffered in the Seven Years' War.

The merits, civil and military, of the prince were recognized by memorials not only in Prussia and Hanover, but also in Denmark, the states of western Germany and England.