Akō (赤穂郡 Akō-gun?) is a district located in Hyōgo Prefecture, Japan.
As of 2003, the district has an estimated population of 18,014 and a density of 119.87 persons per km². The total area is 150.28 km².
Coordinates: 34°52′N 134°21′E / 34.867°N 134.350°E