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.
35°23′N 132°50′E / 35.39°N 132.83°E / 35.39; 132.83