Hikone, city, eastern Shiga ken (prefecture), west-central Honshu, Japan. It lies on the eastern shore of Lake Biwa, about 35 miles (55 km) west-northwest of Nagoya.
The city grew around the castle built by the Ii family between 1603 and 1622. Hikone is now a tourist centre, its visitors attracted by the historic castle, parts of the old castle town, and Lake Biwa. Industries near Hikone along the expressway between Nagoya and the Ōsaka-Kōbe metropolitan area include textile, cement, and pulp factories. Pop. (2010) 112,156; (2015) 113,679.