| Karl von Hänisch | |
| Birth Date: | 25 April 1861 |
| Birth Name: | Karl Heinrich Eduard von Hänisch |
| Birth Place: | Unruhstadt, Province of Posen, Prussia |
| Death Place: | Blankenburg, Weimar Republic |
| Allegiance: | |
| Branch: | |
| Serviceyears: | 1879–1916 |
| Rank: | General der Infanterie |
| Commands: | Chief of Staff, 7th Army XIV Corps |
| Battles: | World War I |
| Awards: | Iron Cross |
Karl Heinrich Eduard von Hänisch (25 April 186127 March 1921), was a Prussian general who served in World War I, his military service spanned 37 years.
Karl Heinrich Eduard von Hänisch was born on 25 April 1861, in Unruhstadt, to the Prussian General of the Cavalry German: {{ill|Carl Eduard von Hänisch|de|Carl von Hänisch (1829–1908) and his wife Laura (née von Hippel; 1834–1918).
Hänisch and his wife Elly (née Schröder), daughter of the mining director Julius Schröder, married on 1 July 1885, and had four children;