Lists of U-boats cover U-boats, military submarines operated by Germany, particularly in the First and Second World Wars. List of German U-boats List of U-boat types of Germany List of U-boat flotillas of Germany List of U-boats never deployed of World War II Germany Uncompleted U-boat projects of World War II Germany List of most successful German U-boats of Germany for kill tonnage in World War I and World War II Foreign U-boats of World War II Germany List of Austro-Hungarian U-boats

See also List of U-boat regions of Germany during World War II