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.

Towns and villages

• Akiōta: founded on October 1, 2004 from the merger of the towns of Kake and Togouchi, and the village of Tsutsuga
• Kitahiroshima: founded on February 1, 2005 from the merger of the towns of Chiyoda, Geihoku, Ōasa and Toyohira

34°41′20″N 132°20′56″E / 34.689°N 132.349°E / 34.689; 132.349