Hikawa Maru (氷川丸) is a retired Japanese ocean liner that Yokohama Dock Company built for the NYK Line.

[1] On 17 December 1931, Korean independence activist Lee Bong-chang took the ship from Shanghai to Kobe, on his way to attempt to assassinate Emperor Hirohito.

[5] Kanō Jigorō, the founder of Judo and Japan's representative on the International Olympic Committee, died whilst aboard in 1938.

[1] In August 1940 a party of 82 German and Lithuanian Jews who had travelled via the USSR and Vladivostok reached Seattle on Hikawa Maru.

[7][8] He described the trip as "a summer vacation and with the war seeming to be so far away" although, he said "I didn't have a peaceful mind because of the strong responsibility I had to help the Jewish refugees with the troubles they faced.

[1] She treated Japanese casualties from the US Task Force 8's attacks on Kwajalein and Wotje atolls in February 1942 and repatriated the seriously wounded to Yokosuka.

[1] She repatriated thousands of Japanese soldiers and civilians from the Pacific Islands, Korea, the Dutch East Indies and China until August 1946, when she docked in Yokohama for repairs.

[1] In the war NYK had lost 172 ships totalling 1.028 million Gross register tons,[1] which may explain why the company used an ocean liner for any cargo.

[1] In 1961 Hikawa Maru was permanently berthed at Yamashita Park, Naka-ku, Yokohama, as a floating museum, hotel and restaurant.