大田 means "large field" in Chinese characters, and may refer to:
Daejeon or , a city in South Korea Datian County (), a county in Sanming, Fujian, China Ōda, Shimane (), a city in Shimane, Japan Ōta, Ōita (), a former village in Nishikunisaki, Ōita, Japan Ōta, Tokyo (), a special ward of Tokyo, Japan
People with the surname Hiroko Ōta (, born 1954), Japanese politician and a researcher of economics Masahide Ōta (, 1925–2017), former governor of Okinawa, Japan Nanami Ohta (, born 1993), Japanese actress Ōta Nanpo (), Japanese poet and fiction writer Princess Ōta (, 644–668), eldest daughter of Emperor Tenji
See also Daejeon (disambiguation) Datian (disambiguation) Oda (disambiguation) Ohta (disambiguation)