Tokyo is in Japan.
The 1964 Summer Olympics , officially known as the , was an international multi-sport event held in Tokyo , Japan , from October 10 to 24 , 1964 . The is a geographical area of Honshu , the largest island of Japan . The are 23 municipalities that together make up the core and the most populous part of Tokyo , Japan . Tokyo ( [ toːkjoː ] , [ langˈtoʊki.oʊ ] ) , officially Tokyo Metropolis , is the capital of Japan and one of its 47 prefectures . Tokyo is in the Kantō region on the southeastern side of the main island Honshu and includes the Izu Islands and Ogasawara Islands .