The Nana Maru (南阿丸) was a Japanese cargo ship from the Seia Maru-class, which was sunk in military service by ML-KNILBrewsters during World War II. It was part of the 11th Air Fleet.
History
Construction was ordered on 17 June 1939 by Kokusai Kisen K.K.. During construction, the ship was taken over by Osaka Shosen Kaisha. It was built by Harima Zosensho K.K. and was laid down and named Nana Maru on 16 April 1940. On 29 June, construction was finished and the ship started service between Japan and South Africa. Because of the war, the Japanese Imperial Navy requisitioned the ship on 21 September 1941 so that it could be used as a transport ship.[3]