Ōta (太田市 Ōta-shi) is a city in eastern Gunma Prefecture, Japan. Ōta is located 80 kilometres (50 mi) northwest of Tokyo between the Tone and Watarase rivers.
Ōta's leading industry is manufacturing, centered in the southeast part of the city. Ōta leads the prefecture in manufacturing revenue, which exceeds ¥1.3 trillion annually. It is the home of the car manufacturer Subaru, a subsidiary of Fuji Heavy Industries, Ltd. However, the northern part of Ōta is characterized by its farms, most of which produce rice. Also, Ōta is a major transportation hub in the Tomo (Eastern Gunma) region and the home of the Sanyo Wild Knights rugby team.
The city became a special city on April 1, 2007 (the neighboring city, Isesaki also became a special city on the same day).