Henning von Holtzendorff | |
|---|---|
 Admiral von Holtzendorff in 1918 | |
| Birth name | Henning Rudolf Adolf Karl von Holtzendorff |
| Born | 9 January 1853 Berlin, Prussia |
| Died | 7 June 1919 (aged 66) Uckermark district, Weimar Republic |
| Allegiance |  Prussia North German Confederation German Empire |
| Service |  North German Federal Navy Imperial German Navy |
| Years of service | 1869–1913 1915–1918 |
| Rank | Großadmiral |
| Unit | West Africa Squadron East Asia Squadron Baltic Sea Naval Station |
| Commands | Imperial Shipyard Danzig I Battle Squadron High Seas Fleet Imperial Admiralty Staff |
| Battles / wars | Franco-Prussian War Boxer Rebellion World War I |
| Awards | Order of the Black Eagle Pour le Mérite with oak leaves |
| Other work | Member of the House of Lords |
Henning Rudolf Adolf Karl von Holtzendorff (9 January 1853 – 7 June 1919) was a German admiral during World War I, who became famous for his December 1916 memo about unrestricted submarine warfare against the United Kingdom. He was a recipient of Order of the Black Eagle and the Pour le Mérite with oak leaves and was one of just six Grand Admirals of the Imperial German Navy.