The German destroyer Z6 Theodor Riedel was a Type 1934A-class destroyer built for the Kriegsmarine during the mid-1930s. At the beginning of World War II in September 1939, the ship laid defensive minefields to the North Sea. She covered her sister ships over the next few months as they laid offensive minefields in English waters in late 1939–early 1940. She participated in the early stages of the Norwegian Campaign by transporting troops to the Trondheim area in early April 1940 and was transferred to France later that year where the ship covered another minelaying sortie before engine problems caused her to return to Germany in November for repairs. Theodor Riedel was badly damaged when she ran aground three days after her repairs were completed and was out of action until May 1942.