Differ Ariake (ディファ有明, Difa Ariake) was an indoor sporting arena located in the Ariake neighborhood of Tokyo, Japan. It opened in 1999.

Differ Ariake closed in June 2018 and it was replaced by the newly-built Ariake Arena for the 2020 Summer Olympics and the 2020 Summer Paralympics.^[1]

The capacity of the arena was 1,246 seats. It was mainly used for professional wrestling and martial arts events. The arena became known as the home of Pro Wrestling Noah, housing the promotion's offices and training dojo.^[1]

The arena may be reached on a short walk from either Ariake Tennis no Mori Station on the New Transit Yurikamome or Kokusai-Tenjijō Station on the Rinkai Line.