Midori-ku (緑区, Midori-ku) is one of three wards of Sagamihara, Kanagawa, Japan. It's located in the western part of the city and covers about 77% of city's area. To the east Midori-ku faces Chūō-ku and to the north faces Machida and Hachiōji.

Midori-ku was created on April 1, 2010 when Sagamihara became a city designated by government ordinance (a "designated city").

As of March 2010, Midori-ku had a population of 174,784, with a land area of 253.8 square kilometers.

Municipal junior high schools:^[1]

Municipal elementary schools:^[2]