The State of the Presidi (, meaning "state of the garrisons") was a small territory on the Tuscan coast of Italy that existed between 1557 and 1801. It consisted of remnants of the former Republic of Siena—the five towns of Porto Ercole and Porto Santo Stefano on the promontory of Monte Argentario, as well as Orbetello, Talamone and Ansedonia—and their hinterland, along with the islet of Giannutri and the fortress of Porto Longone on the island of Elba.
