Sayō is a town located in Sayō District, Hyōgo Prefecture, Japan. As of 31 March 2022, the town had an estimated population of 15,701 in 6797 households and a population density of 51 persons per km2. The total area of the town is 307.44 square kilometres (118.70 sq mi).

Hyōgo Prefecture is a prefecture of Japan located in the Kansai region of Honshu. Hyōgo Prefecture has a population of 5,469,762 and a geographic area of 8,400 square kilometres. Hyōgo Prefecture borders Kyoto Prefecture to the east, Osaka Prefecture to the southeast, and Okayama and Tottori prefectures to the west.