Fort H. G. Wright was a United States military installation on Fishers Island in the town of Southold, New York, just two miles off the coast of southeastern Connecticut, but technically in New York. It was part of the Harbor Defenses of Long Island Sound, along with Fort Terry, Fort Michie, and (in World War II) Camp Hero. These forts defended the eastern entrance of Long Island Sound and thus Connecticut's ports and the north shore of Long Island. The fort was named for Union General Horatio G. Wright, a former Chief of Engineers who was born in Clinton, Connecticut.