Denen Coliseum (田園コロシアム, Den'en Koroshiamu) was an outdoor tennis venue located in Ōta, Tokyo, Japan. It had a capacity of 10,000.

Denen Coliseum
Map
LocationOta, Tokyo, Japan
OwnerDenen Tennis Club
Capacity10,000
SurfaceClay
Construction
Opened1936
Closed1989
Construction cost$ ? million
Tenants
Japan Open Tennis Championships (1972-1986)
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35°35′41″N 139°40′06″E / 35.594736°N 139.668243°E / 35.594736; 139.668243