The NYK Maritime Museum (日本郵船歴史博物館, Nippon Yūsen Rekishi Hakubutsukan) is a museum in Naka-ku, Yokohama, Kanagawa Prefecture, Japan, dedicated to the maritime history of Japan and of the museum's operator, shipping company Nippon Yūsen Kabushiki Kaisha ("NYK Line"). It was opened in 1993.