This list is of the Historic Sites of Japan located within the Prefecture of Hiroshima.
As of 1 August 2025, thirty-one Sites have been designated as being of national significance (including three *Special Historic Sites); the Joseon Mission Sites span the prefectural borders with Okayama and also include an area of Shizuoka.
As of 6 August 2025, one hundred and twenty-five Sites have been designated as being of prefectural importance.
As of 1 May 2024, a further three hundred and fifty-six Sites have been designated as being of municipal importance.