Ōta (大田区, Ōta-ku) is a special ward in the Tokyo Metropolis in Japan. The ward refers to itself in English as Ōta City. It was formed in 1947 as a merger of Ōmori and Kamata following Tokyo City's transformation into Tokyo Metropolis. The southernmost of the 23 special wards, Ōta borders the special wards of Shinagawa, Meguro and Setagaya to the north, and Kōtō to the east. Across the Tama River in Kanagawa Prefecture is the city of Kawasaki, forming the boundaries to the south and west.
Ōta is the largest special ward in Tokyo by area, spanning 59.46 square kilometres (22.96 sq mi). As of 2024, the ward has an estimated population of 744,849, making it the third largest special ward by population, with a population density of 12,041 inhabitants per square kilometre (31,190/sq mi).
Notable neighborhoods and districts of Ōta include Kamata, the administrative center of the ward where the Ward Office and central Post Office is located, and Den-en-chōfu, known for its wealthy residents and luxury homes. Haneda Airport, the busiest airport in Japan by passenger traffic is located in the ward.
Ota is a good place to try reasonable non-chain restaurants because of proximity to wholesale markets: vegetable and fish market in the ward and meat market in adjacent Shinagawa ward.
Labeled a "widely known secret", Kamata has transformed itself into an entertainment hub with a ton of drinking establishments clustered around JR Kamata station.
The main reason to stay in Ota is if you have an early flight out from Haneda Airport.
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The name "Ota" is a combination of uO/umori (大森) and Kamauta/u (蒲田), two former wards which merged to form Ota Ward. Omori and Kamata remain the major urban centers in the ward.
