This list is of the Historic Sites of Japan located within the Prefecture of Iwate.
As of 1 August 2014, thirty sites have been designated as being of national significance (including three *Special Historic Sites).
As of 1 May 2014, thirty-seven sites have been designated as being of prefectural importance.
As of 1 May 2014, a further one hundred and ninety-two sites have been designated as being of municipal importance.