Ariake (有明^?) is a location within Kōtō, Tokyo, Japan. It is best known as the region adjacent to and directly east of Odaiba. Airake is subdivided into four chome and comprises part of the Tokyo Bay Landfill #10 and Tokyo Rinkai Satellite City Center.

Ariake is most well known internationally as the site of the Tokyo Big Sight international exhibition centre. Other important facilities located within Ariake include the Differ Ariake Arena, Ariake Tennis Forest Park (Ariake Tenisu no Mori Kōen), Ariake Coliseum, Ariake Sports Center, Massachusetts Mutual Life Insurance Company, Tokyo Ariake University of Medical and Health Sciences, the Japanese Foundation For Cancer Research and the headquarters of Aruze. Ariake is a center for shipping in the pulp and paper industry.