Windsor Locks is a town located in Hartford County, Connecticut, United States. As of the 2000 census, its population was 12,043. It is the site of Bradley International Airport, which serves the Greater Hartford-Springfield region. It is also the site of the New England Air Museum. Approximately 1/3 of Windsor Locks is occupied by Bradley International Airport.

Located beside the Connecticut River and equidistant from the densely populated cities of Springfield, Massachusetts and Hartford, Connecticut, Windsor Locks is named for a set of canal locks that opened in 1829. Windsor Locks is situated just south of the first large falls in the Connecticut River, the Enfield Falls, which is the northernmost point that sea-going vessels can reach on the Connecticut River before transferring to smaller ships. The Enfield Falls Canal circumvents the Enfield Falls and its nearby shallows.

Windsor Locks won the 1965 Little League World Series.

According to the United States Census Bureau, the town has a total area of 9.4 square miles (24.2 km²), of which, 9.0 square miles (23.4 km²) of it is land and 0.3 square miles (0.9 km²) of it (3.53%) is water.

Connecticut (ⁱ/kəˈnɛtɨkət/) is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south (with which it shares a water boundary in Long Island Sound).

Connecticut is named for the Connecticut River, the major U.S. river that approximately bisects the state. Its capital city is Hartford. Much of southern and western Connecticut (along with the majority of the state's population) is part of the New York metropolitan area; three of Connecticut's eight counties are statistically included in the New York City combined statistical area, the same area is widely referred to as the Tri-State area. Connecticut's center of population is in Cheshire, New Haven County, which is also located within the Tri-State area.

Connecticut is the 3rd least extensive, the 29th most populous, and 4th most densely populated of the 50 United States. Called the Constitution State, Nutmeg State, and "The Land of Steady Habits", Connecticut was influential in the development of the federal government of the United States.