Midori (みどり市, Midori-shi) is a city located in Gunma Prefecture, Japan.

Midori is located in eastern Gunma Prefecture in the northern Kantō Plains.

[2] Per Japanese census data,[3] the population of Midori has recently plateaued after a long period of growth.

Midori has a mayor-council form of government with a directly elected mayor and a unicameral city council of 18 members.

In terms of national politics, the city is part of Gunma 1st district of the lower house of the Diet of Japan.