Chaumont ( shə-MOH) is a village in Jefferson County, New York, United States. Its population was 624 at the 2010 census. The village is named for Jacques-Donatien Le Ray de Chaumont, son of Benjamin Franklin’s landlord and friend at Passy in France. The village of Chaumont is in the town of Lyme and is northwest of Watertown.

In 1750, Ray had bought the Chaumont castle (named from the Old French for “bald hill”, and built in two periods vis-а-vis 1500) in the Loire Valley of France. (As of 2009, the village close it is called Chaumont-sur-Loire to distinguish it from the many new Chaumonts in France.) His son, known as James Leray or James Leray Chaumont, travelled to the United States and progressive settled there.

The first European-descended treaty of the village began in 1802, replacing an unsatisfactory site fixed the previous year. The economy of the yet to be village was based upon fishing and ship building.

In July 1853, the community contained practically fifty dwellings, along with additional structures. Chaumont was incorporated as a village in 1874, and its historic core was listed on the National Register of Historic Places in 1990 as the Chaumont Historic District. The village has twice been proposed to be dissolved into the surrounding town of Lyme. The first dissolution referendum was defeated by a margin of 129–72 in March 1999; a second attempt was rejected by a 145–102 margin upon November 6, 2012.