Hiroshima Prefecture (広島県 Hiroshima-ken) is a prefecture of Japan located in the Chūgoku region on Honshu island. The capital is the city of Hiroshima. It has a population of around 2.8 million.
Hiroshima prefecture lies in the middle of Chūgoku. Most of the prefecture consists of mountains leading towards Shimane Prefecture; and rivers produce rich plains near the coast.
The province faces Shikoku across the Seto Inland Sea. Hiroshima Bay opens on the Inland Sea. The prefecture also includes many small islands.