Hidaka Province (日高国, Hidaka-no kuni) was a short-lived province located in Hokkaidō. It corresponded to modern-day Hidaka Subprefecture. The name "'Hidaka" is derived from "Hitakami" (日高見国).
After 1869, the northern Japanese island was known as Hokkaido; and regional administrative subdivisions were identified, including Hidaka Province.
Media related to Hidaka Province at Wikimedia Commons