🇯🇵 Hayashima is a town located in Tsukubo District, Okayama Prefecture, Japan. The town has the highest population density of any municipality in Okayama Prefecture. The total area is 7.62 km², making it also the smallest municipality.
Hayashima has a population of over 12,671 people. Hayashima also forms part of the wider Tsukubo District which has a population of over 21,601 people.