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.

Townsend Harris was an American merchant and politician who served as the first United States Consul General to Japan. He negotiated the Harris Treaty between the US and Japan and is credited as the diplomat who first opened Shogunate Japan to foreign trade and culture in the Edo period.