Ōmiya, Saitama

Ōmiya (大宮市, Ōmiya-shi) was a city located in Saitama Prefecture, Japan.

On May 1, 2001, Ōmiya was merged with the cities of Urawa and Yono to create the city of Saitama. This merger aimed to streamline administrative functions and promote regional development. In 2003, Saitama City became a designated city, leading to the establishment of wards, including Ōmiya Ward, which encompasses much of the former Ōmiya-shi area.

Since April 1, 2003, the area of former Ōmiya City has been divided into 4 wards: Kita-ku, Minuma-ku, Nishi-ku and Ōmiya-ku of Saitama City.