CD-13 was a Type C escort ship (Kaibōkan) of the Imperial Japanese Navy during the Second World War.

CD-13 was laid down by Nippon Kokan K. K. at their Tsurumi Shipyard on 18 December 1943, launched on 9 February 1944, and completed and commissioned on 3 April 1944. She was assigned to the Kure Guard Force, Yokosuka Naval District under Reserve Lieutenant Kondo Genichi. During the war CD-13 was mostly busy on escort duties.

On 26 June 1945, she was attached to the 4th escort unit, Maizuru Guard Force, Maizuru Naval District. On 14 August 1945, she arrived in pursuit of the American submarine USS Torsk which had just sunk her fellow Type C escort ship CD-47 off Maizuru in the Sea of Japan at 35°42′N 134°36′E / 35.700°N 134.600°E / 35.700; 134.600. Torsk spotted her on sonar and fired two Mark 27 torpedoes from a depth of 400 feet (120 m). At 1225, she received a single torpedo hit to the stern and at 1235, the order to abandon ship was given. She sank at 1255 at 35°41′N 134°35′E / 35.683°N 134.583°E / 35.683; 134.583. 28 crewman were killed.

CD-13 was struck from the Navy List on 15 September 1945. She was the last Japanese ship sunk in action during World War II (ships would continue to be lost to mines).

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