Hans-Heinrich Giessler

Hans-Heinrich Giessler
Kapitänleutnant Giessler in Saint-Nazaire on June 16, 1942
Native name
Hans-Heinrich Gießler
Born(1911-01-12)12 January 1911
Died21 August 1991(1991-08-21) (aged 80)
Allegiance Weimar Republic (to 1933)
Nazi Germany (to 1945)
Branch Reichsmarine
 Kriegsmarine
Service years1931–1945
Rank Korvettenkapitän
Unit7th U-boat Flotilla
CommandsU-455
Z20 Karl Galster
ConflictsWorld War II
AwardsIron Cross 2nd Class
U-boat War Badge (1939)
Iron Cross 1st Class

Hans-Heinrich Giessler (2 January 1911 - 21 August, 1991), also spelled as Hans-Heinrich Gießler, was a German U-boat commander and destroyer commander during World War II. Under Giessler's command, the submarine U-455 was credited with sinking two Allied ships totaling 13,908 gross register tons (GRT). During the latter half of Giessler's career he commanded the German destroyer Z20 Karl Galster, a Type 1936 destroyer, and worked for the Reich Ministry of Armaments and War Production.