This list is of the Historic Sites of Japan located within the Prefecture of Nagano.
As of 1 August 2025, thirty-nine Sites have been designated as being of national significance (including one *Special Historic Site); the Nakasendà  spans the prefectural borders with Gifu.
|- | align="center"|KÃ Âsakayama Site<br><br><small>KÃ Âsakayama iseki</small> || Saku || || || || 1 || |-
As of 1 March 2021, sixty-eight Sites have been designated as being of prefectural importance.
As of 1 May 2019, a further six hundred and seventy-three Sites have been designated as being of municipal importance.