Camden Fort Meagher, Military coastal fort in Crosshaven, Ireland.

Camden Fort Meagher is a coastal defence fortification on Ram's Head near Crosshaven, County Cork. Its current structures date from the 1860s, when convict, military and civilian labour extended the site and built many of its structures underground. On the landward side, a ditch, ramparts, terreplein, caponier and flanking batteries defended the approaches, while a casemated barracks on the north-east corner housed the garrison.

The fort served as a military position for centuries before being transferred to Irish Defence Forces in 1938 under the Treaty Port arrangement. This handover represented a major step toward Irish control of its own coastal defenses.

The fort was renamed Fort Meagher in 1938 for Thomas Francis Meagher, a Young Irelander rebel of 1848. The same renaming wave turned Fort Westmoreland on Spike Island into Fort Mitchell and Fort Carlisle at Whitegate into Fort Davis. Reenactment events are sometimes held on the parade square.

The fort offers guided tours and exhibitions with views across Cork Harbour, along with a cafe for refreshments during your visit. Some interior areas have limited wheelchair access, so plan your route accordingly if mobility is a concern.

The fort holds one of the only resident 9/11 exhibits outside the United States, housed within its restored casemates. At its 19th-century peak the site held 7 officers, over 200 men and more than 20 guns, and the Brennan torpedo launching position added in the 1880s and 1890s is tied to what is described as the world's first practical guided weapon.