Ashiya is a city in Hyōgo Prefecture, Japan. As of 1 November 2022, the city had an estimated population of 95,485 in 45,562 households and a population density of 5,200 persons per km2. The total area of the city is 53.44 square kilometres (20.63 sq mi). It has a reputation as a high-end residential area.

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.