Fort Williams is a former United States Army fort in Cape Elizabeth, Maine which operated from 1872 to 1964. It was part of the Coast Defenses of Portland, later renamed the Harbor Defenses of Portland, a command which protected Portland's port and naval anchorage 1904–1950. After its closure, it was redeveloped into Fort Williams Park.
Owner: Town of Cape Elizabeth, Maine
Built: 1898
Controlled by: Town of Cape Elizabeth
Open to the public: yes
Built by: United States Army
In use: 1898-1962
Battles/wars: World War I · World War II · Cold War