Fonda is a village in and the county seat of Montgomery County, New York, United States. The population was 795 at the 2010 census. The village is named after Douw Fonda, a Dutch-American settler who was killed and scalped in 1780, during a Mohawk raid in the Revolutionary War, when the tribe was allied with the British. The Village of Fonda is in the Town of Mohawk and is west of Amsterdam.