The German torpedo boat T25 was one of fifteen Type 39 torpedo boats built for the Kriegsmarine (German Navy) during World War II. Completed in late 1942, she was transferred to France in July 1943. T25 was unsuccessfully attacked by Allied motor torpedo boats and aircraft during her voyage down the English Channel and then came to the aid of a convoy being attacked by Allied destroyers. Later that year she escorted blockade runners and Axis submarines through the Bay of Biscay. T25 also helped to lay minefields in the English Channel in mid-1943. She participated in the Battle of Sept-Îles in October and was sunk two months later by British light cruisers during the Battle of the Bay of Biscay.