Friedrich Karl Topp (29 September 1895, Voerde – 24 April 1981) was a naval officer in Germany during both World Wars.
Topp was born in Voerde in the Prussian province of Westphalia. His father was a priest. He joined the Kaiserliche Marine (Imperial Navy) in 1914 and took part in World War I in submarines. At the end of the war he was a first officer under the command of Martin Niemöller. After the war he was transferred to the Weimar Republic Navy. In the Third Reich he was Generalreferent (chief-official in charge) for military problems of shipbuilding, later on chief of military department at the main office of warship building, an administrate body of the Marineamt (highest command of the German Navy) and in 15 January 1941 - 24 February 1943 as Kapitän zur See (KzS, Captain) the first of the chiefs of the Tirpitz. Later, he was the chairman of the commission for shipbuilding reporting to the Reichminister für Rüstung und Kriegsproduktion Albert Speer (Minister of Armament and War Production); his last rank was Vizeadmiral (Viceadmiral). After the war the British Army engaged him some months for winding up the German shipyards. In 1946 he was released from being a prisoner-of-war. After this, for nearly ten years he worked as a commercial representative, living in Jever / Low Saxony, where he died after retirement.