Okutama is a town located in the western portion of Tokyo Prefecture, Japan, at a distance of roughly 60 kilometres (37 mi) west-northwest of Tokyo Imperial Palace. As of 1 April 2021, the town had an estimated population of 4,949, and a population density of 22 persons per km2. The total area of the town is 225.53 square kilometres (87.08 sq mi).

Tokyo, officially the Tokyo Metropolis, is the capital city of Japan and one of the most populous cities in the world, with a population of over 14 million residents as of 2023. The Greater Tokyo Area, which includes Tokyo and parts of six neighbouring prefectures, is the most-populous metropolitan area in the world, with 40.8 million residents as of 2023.