Hokkai Maru (Japanese: 北海丸) was an auxiliary stores ship of the Imperial Japanese Navy during World War II.
Hokkai Maru was laid down on 12 September 1933[1] by Mitsubishi Zosen K.K. at their Kobe shipyard at the behest of the Nippon Suisan K.K. as a refrigerated deep sea trawler.[2] [3] Her sister trawlers became stores ships and Hakurei Maru.[1] She was launched on 15 March 1934 and completed on 15 May 1934.[1] She was made of steel. She was a fishing trawler until she was requisitioned by the Imperial Japanese Navy in October 1937.[1] Returned to her owners November-December 1938. Re-requisitioned in 1939. returned to her owners 23 May 1940. Re-requisitioned 7 August 1940.
On 7 May, 1942 she rescued twenty three survivors from a raft from Auxiliary merchant cruiser Kinjosan Maru, torpedoed and sunk by on the 4th.[4]
On 22 November 1944, she was attacked and sunk by torpedoes fired from the American submarine at (33.3333°N 142°W).[1] [5] She was struck from the Navy List on 10 January 1944.[1]