is a Quasi-National Park in eastern Hokkaidà Â, Japan. Established in 2021, the park spans the municipalities of Akkeshi, Hamanaka, Kushiro, and Shibecha. It subsumes and replaces the former Akkeshi Prefectural Natural Park, established in 1955.
The park, which has a total designated area of , including a marine zone of , comprises three non-contiguous largely coastal areas, adjoining areas of lake, marsh, wetland, and forest, and several islands. Prominent features include, from west to east, and , , , Daikoku Island (a Special Wildlife Protection Area, the seabird breeding grounds of which are a Natural Monument), Lake Akkeshi (a Special Wildlife Protection Area and part of the Akkeshi-ko and Bekambeushi-shitsugen Ramsar site), , , , , Kenbokki Island, , Kiritappu-shitsugen (a Special Wildlife Protection Area and Ramsar site, the peat-forming plant communities of which are a Natural Monument), , and .
Flora within the park include the Sakhalin fir, Erman's birch, Arctic iris, Sendai-hagi, Ezo-kanzà Â, and small cranberry; fauna, the Japanese crane, white-tailed eagle, Steller's sea eagle, whooper swan, Leach's storm petrel, and tufted puffin.