Ariake Coliseum (有明コロシアム, Ariake Koroshiamu) is an indoor sporting arena in Ariake Tennis Forest Park (有明テニスの森公園, Ariake Tenisu no Mori Kōen) located in Ariake, Koto, Tokyo, Japan. It has a capacity of 10,000 and is one of the few professional tennis venues which has a retractable roof.