Helmut Brümmer-Patzig
| Helmut Brümmer-Patzig | |
|---|---|
| Born | 26 October 1890 Danzig, Kingdom of Prussia, German Empire | 
| Died | 11 March 1984 (aged 93) West Germany | 
| Allegiance | German Empire Weimar Republic Nazi Germany | 
| Service | Imperial German Navy Reichsmarine Kriegsmarine | 
| Years of service | 1910–45 | 
| Rank | Fregattenkapitän (frigate captain) | 
| Commands | SM U-86, January – August 1918 SM U-90, August – November 1918 UD-4, January – October 1941 26th U-boat Flotilla, April 1943 – March 1945 | 
| Battles / wars | World War I World War II | 
| Awards | Iron Cross 1st ClassWar Merit Cross | 
Helmut Patzig, also known as Helmut Brümmer-Patzig (26 October 1890 – 11 March 1984) was a German U-boat commander in the Kaiserliche Marine in World War I, and the Kriegsmarine in World War II. He was captain of U-86, the vessel that sank a Canadian hospital ship, HMHS Llandovery Castle, in 1918. Patzig evaded prosecution at the Leipzig War Crimes Trials in 1921 after fleeing German jurisdiction. During the Second World War he returned to naval service, serving as commander of the 26th U-boat Flotilla, a U-boat training group, from 1943 into 1945.