Ōmihachiman (近江八幡市, Ōmihachiman-shi) is a city located in Shiga Prefecture, Japan. As of 31 August 2021, the city had an estimated population of 82,233 in 34747 households and a population density of 570 persons per km2. The total area of the city is 76.97 square kilometres (29.72 sq mi).