Friedrich Guggenberger (6 March 1915 – 13 May 1988) was a German U-boat commander of the Second World War, and was highly successful during this period. From November 1940 until his capture in July 1943, he sank 17 ships for a total of and damaged another for . He was also responsible for sinking the British aircraft carrier HMS Ark Royal in November 1941. For these achievements he received the Knight's Cross with Oak Leaves, among other commendations. After the war he became the Deputy Chief of Staff in the NATO command AFNORTH.