Hans Emil Alexander Gaede (19 February 1852 in Kolberg – 16 September 1916 in Freiburg im Breisgau) was a Prussian officer, and later General of Infantry during World War I.

He commanded Army Detachment Gaede and was a recipient of the Pour le Mérite.

Gaede was born on 18 February 1852 in the Kingdom of Prussia.

He entered the army in 1870 as a cadet in the 2nd Grenadier Regiment and participated in the Franco-Prussian War.

He later got the command of six landwehr regiments which became the Army Detachment Gaede, or Army Detachment B. Gaede lead his troops in defending the upper Alsace region, however serious illness resulted in Gaede being retired again in September 1916.