Hikawa (簸川郡 Hikawa-gun?) was a district located in Shimane Prefecture, Japan.
As of 2003, the district had an estimated population of 57,333 and a density of 185.14 persons per km². The total area was 309.68 km².
Coordinates: 35°23′N 132°50′E / 35.39°N 132.83°E