Ishikari Bay

43°20′N 141°7′E / 43.333°N 141.117°E / 43.333; 141.117River sourcesIshikari, Shinkawa, HoshiokiOcean/sea sourcesSea of JapanBasin countriesJapanMax. depth500 m (1,640 ft)^[1]SettlementsOtaru, Ishikari, Shakotan, Furubira, Yoichi

Ishikari Bay (石狩湾, Ishikari-wan) is a bay located in Hokkaido of Japan, connected to the Sea of Japan. Ishikari Bay is the area east of the straight line from Cape Shakotan on the west of Shakotan Peninsula to Cape Ofuyu.

Shiribeshi Subprefecture

Otaru, Shakotan, Furubira, Yoichi

Ishikari Subprefecture

Ishikari

Ishikari, Shinkawa, Hoshioki, etc.

In Hokkaido, important ports are located in Ishikari Bay. The New Port of Ishikari Bay [ja] and the Port of Otaru [ja].

In addition to a small array of onshore wind turbines, in late 2023 the New Port became host to the Ishikari Bay New Port Offshore Wind Farm, at the time the largest offshore wind farm in Japan.