Glens Falls is a city in Warren County, New York, United States and is the central city of the Glens Falls Metropolitan Statistical Area. The population was 14,830 at the 2020 census. The name was given by Colonel Johannes Glen, the falls referring to a large waterfall in the Hudson River at the southern end of the city.

Warren County is a county in the U.S. state of New York. As of the 2020 census, the population was 65,737. The county seat is Queensbury. The county was established in 1813 and is named in honor of General Joseph Warren, an American Revolutionary War hero of the Battle of Bunker Hill. The county is part of the Capital District region of the state.