Yamagata (山県郡 Yamagata-gun?) is a district located in northwestern Hiroshima Prefecture, Japan.
As of 2003, the district has an estimated population of 29,978 and a density of 30.34 persons per km². The total area is 988.11 km².
Coordinates: 34°41′20″N 132°20′56″E / 34.689°N 132.349°E