Midori-ku (緑区), is a common ward name in a number of Japanese cities.Midori-ku, Chiba, in Chiba Prefecture Midori-ku, Nagoya, in Aichi Prefecture Midori-ku, Sagamihara, in Kanagawa Prefecture Midori-ku, Saitama, in Saitama Prefecture Midori-ku, Yokohama, in Kanagawa Prefecture