Hudson Falls is a village located in Washington County, New York, United States. The village is in the southwest of the town of Kingsbury, on U.S. Route 4. Hudson Falls is part of the Glens Falls Metropolitan Statistical Area. As of the 2010 census, the village had a population of 7,281. It was the county seat of Washington County until 1994, when the county seat was moved to Fort Edward.

Washington County is a county in the U.S. state of New York. As of the 2020 census, the population was 61,302. The county seat is Fort Edward. The county was named for U.S. President George Washington. The county is part of the Capital District region of the state.