Hayashima (早島町, Hayashima-chō) is a town located in Tsukubo District, Okayama Prefecture, Japan.

Okayama Prefecture Hayashima has a Humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with moderate snowfall.

After the Meiji restoration, the village of Hayashima was established with the creation of the modern municipalities system on June 1, 1889.

Hayashima has a mayor-council form of government with a directly elected mayor and a unicameral town council ten members.

In terms of national politics, the village is part of the Okayama 4th district of the lower house of the Diet of Japan.